Theories of Everything with Curt Jaimungal - Avshalom Elitzur: The Universe Writes Itself Into Existence Moment by Moment
Episode Date: November 19, 2024In this episode of Theories of Everything, Curt Jaimungal speaks with physicist Avshalom Elitzur, co-creator of the famous bomb-testing experiment, as he unveils a bold new vision of reality where spa...cetime emerges from quantum interactions in pure nothingness. Elitzur challenges conventional physics with ideas like negative mass particles and the continuous creation of spacetime, offering a fresh perspective on the nature of existence. SPONSOR (THE ECONOMIST): As a listener of TOE you can get a special 20% off discount to The Economist and all it has to offer! Visit https://www.economist.com/toe TOE'S TOP LINKS: - Support TOE on Patreon: https://patreon.com/curtjaimungal (early access to ad-free audio episodes!) - Enjoy TOE on Spotify! https://tinyurl.com/SpotifyTOE - Become a YouTube Member Here: https://www.youtube.com/channel/UCdWIQh9DGG6uhJk8eyIFl1w/join - Join TOE's Newsletter 'TOEmail' at https://www.curtjaimungal.org LINKED MENTIONED: - Avshalom’s citations: https://scholar.google.co.il/citations?user=ZivyhegAAAAJ&hl=en - Leonard Susskind on TOE: https://www.youtube.com/watch?v=2p_Hlm6aCok - The Physicist and the Philosopher (book): https://www.amazon.com/Physicist-Philosopher-Einstein-Bergson-Understanding/dp/0691173176 - Roger Penrose on TOE: https://www.youtube.com/watch?v=sGm505TFMbU&list=PLZ7ikzmc6zlN6E8KrxcYCWQIHg2tfkqvR&index=7 - Interpretations of quantum mechanics (paper): https://curtjaimungal.substack.com/p/the-interpretations-of-quantum-mechanics - Lee Smolin on TOE: https://www.youtube.com/watch?v=uOKOodQXjhc - Quantum mechanical interaction-free measurements (paper): https://arxiv.org/pdf/hep-th/9305002 - Nonlocal Position Changes of a Photon Revealed by Quantum Routers (paper): https://www.nature.com/articles/s41598-018-26018-y - Manolis Kellis on TOE: https://www.youtube.com/watch?v=g56lxZwnaqg - The Quark and the Jaguar (book): https://www.amazon.com/Quark-Jaguar-Adventures-Simple-Complex/dp/0805072535 Timestamps: 00:00 - Introduction 03:04 - Unifying Quantum Mechanics and Relativity 04:42 - Prof. Elitzur’s Unconventional Path in Physics 07:02 - The Problem of Unifying Forces in Physics 10:06 - Time’s Role in Relativity and Simplicity in Physics 13:34 - The Nature of Time and the Flow of Events 19:20 - Relativity of Simultaneity Explained 24:22 - Free Will and the Block Universe Debate 28:49 - Time Asymmetry in Physics 31:06 - The Universe’s Expanding Time and Black Holes 35:39 - Einstein, Minkowski, and the Concept of Time 39:43 - Paradigm Shifts in Quantum Mechanics 43:00 - The Concept of Becoming in Physics 49:15 - Quantum Mechanics and Time Symmetry 55:43 - The Two-State Vector Formalism (TSVF) 01:06:15 - Non-Locality and Quantum Zigzag 01:12:50 - New Physics from TSVF: Negative Mass 01:23:00 - Implications of Negative Mass in Physics 01:32:00 - The Emerging New Paradigm in Physics 01:46:46 - Biology, mistakes, and innovation 01:48:01 - Spacetime emerging from nothing 01:50:03 - Wave functions creating spacetime 01:56:08 - Schrödinger's cat and spacetime 02:00:01 - Unifying quantum mechanics and gravity 02:11:05 - Advice for young physicists 02:16:29 - Support TOE Other Links: - Twitter: https://twitter.com/TOEwithCurt - Discord Invite: https://discord.com/invite/kBcnfNVwqs - iTunes: https://podcasts.apple.com/ca/podcast/better-left-unsaid-with-curt-jaimungal/id1521758802 - Subreddit r/TheoriesOfEverything: https://reddit.com/r/theoriesofeverything #science #sciencepodcast #physics #theoreticalphysics Learn more about your ad choices. Visit megaphone.fm/adchoices
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The future is the nowhere, is the no-when. There is nothing there, not even space-time.
And actually, as the universe is expanding, just like following the Big Bang, it is also expanding in time.
It turns out, however, that for a very brief time, the universe allows negative mass to
exist, and that may explain the very mystery of the quantum.
Professor Avshalom Elitsor, a pioneer in the field of quantum theory, received his PhD
without even a high school diploma,
akin to Stephen Wolfram.
He's a household name among physicists.
Elixir and his collaborator, Weidman, discovered the famous bomb testing experiment, which
many quantum physicists consider more profound than even the double slit experiment.
In today's episode, Elixir proposes a new vision of reality for the first time.
Starting from the elementary observation that time seems to flow, Elitsor articulates a
unification of quantum mechanics and gravity by suggesting that space-time itself emerges
from quantum interactions in pure nothingness. The longer you watch this video, the more
ambitious it gets.
I think that there is something missing in physics.
Something that does not exist in the present particle models, in the standard models.
In some ways, this is the opposite of the retold dictum that space-time is doomed.
According to Elitor, it's more like it's not the death of space-time, it's the creation
of it.
Last week, we spoke to Julian Barbour about time being an illusion,
and today we continue this excursion into the temporal with the opposite view.
Time and the now are real.
A consequence of this is that negative mass particles exist,
challenging the foundations of modern physics.
Just by the fact that it could have a crowd, it leaves a physical trace.
Though his ideas sound outlandish, the professor's track record for correct predictions,
including experiments now being verified in the lab,
suggests that we should listen closely to what he has to say about the nature of existence itself.
Welcome to the podcast, professor.
It's been great connecting with you over the past few weeks.
You have some new ideas that you've been working on about quantum mechanics, about time, perhaps
even gravity, ones that you haven't voiced anywhere else yet publicly.
So please tell me about them and tell the audience about them.
Hello.
First of all, thank you, Kurt.
I should be thankful to you for this reason.
I give many Zoom talks, but for the first time, you gave me an idea when you invited me to talk on your podcast.
I listened to some of the other talks and I said, wait, I also have a theory, a very ambitious one, a theory of unification.
Yes.
I think that I have a way to unify quantum mechanics with relativity,
general relativity, and also a step towards reunification, a unified theory.
Do I have a theory?
Have I had one?
I would be dancing on my way to stockholm but so it's not yet.
What i believe that the model is getting more and more flesh and bones and the just preparing for the stock made me say sometimes that's not a bad idea and it's about time to write a paper.
and it's about time to write a paper and present it somewhere. So I thank you for this opportunity for showing this in a raw form without mathematics as
non-technically as possible to you and to the audience.
So professor, how about we start with you giving a broad overview as to your journey
in physics.
What did you used to believe?
How did you get into the field?
What did you transition to?
And what have you transitioned from, et cetera?
My path in physics is, as you know, somewhat unusual.
I did my PhD with Yakir Aronov, who is still my mentor.
He's now, he has recently celebrated his, uh, 90,
92nd birthday, still very active, very sharp.
And we are thankful for that.
I brought him some of my own students as his grandchildren and he is going
to have grand grandchildren.
Uh, I have also, I boast some very talented students of my own.
It's unusual because I never finished high school.
I never did the bachelor or I didn't do my master's.
I just did my PhD.
I took me just from out of the academia and said,
okay, even if you didn't finish high school,
why you have interesting ideas about physics
and why don't you do your PhD with me?
And I hope that I have rewarded him
with the publications that I had
and the discovery that I had since then.
And many people know me
through the Elitso Weidman experiment,
which is, I believe it's the only experiment
in the whole history of physics which makes
you smile.
Physics is not supposed to be funny.
But the bomb testing experiment, you think about it, a bomb that could explode but did
not explode, and because it could explode although it did not explode, leaves some physical
mark, some real consequence, which is really paradoxical.
I had some other papers, some more technical. I had the privilege together with my student to
be involved even in applications and patents and so on. And I always been interested in the foundations of physics, the very foundations.
Uh, this is a field of physics that today is not studied, um, in many places in the world.
You know, most of the money goes to what?
Uh, quantum computer, quantum computation, quantum communication,
solid state physics and so on.
But foundations of physics is just asking the very basic questions about the reality in which
we live. What is space? What is time? What is matter? What is energy? What are the relations
between them? And we are very happy with some very strong and powerful theories that we have, quantum mechanics,
relativity theory, quantum field theory, some advances in cosmology and so on and so on.
But still we understand that there is something missing and there is some discrepancies between
these various descriptions of the world, especially relativity and quantum mechanics.
There is a problem of unification. There are a few forces of nature. We have seen beautiful advances when
some more than a century ago, almost two centuries ago, Michael Faraday managed to show that magnetism
and electricity are one and the same. That was
an amazing and beautiful unification. And we always have the feeling that ever since Einstein
has shown that gravity is not really a force, but a kind of space-time curvature, he himself was
sure that within a few months, maximum few years, he will be able now to
go back to Faraday's equations and Maxwell's equations and show that just electromagnetic
attraction and propulsion can be explained in terms of space-time kind of curvature just
as he did with gravity and he failed miserably and everybody since then who tries that
keeps failing miserably. There's been a nice unification of the weak force with
the electric force but we still have the strong force and still gravity and
people don't know how to unify it even with the electromagnetic force.
Yeah, I should mention all string theories, but I believe I have enough enemies anyways.
So rather keep to myself some remarks which are not there. Actually, I've seen the talk with, um, uh, with, uh, Susskind, your talk with
Susskind to whom I have great respect.
And, uh, I murmured to myself for God's sake, all these efforts, and this is
what you got after 50 years of promising that you're gonna have the theory of
everything.
No way.
Look, John John Archibald
Wheeler, you know, he was one of the pioneers of quantum mechanics. He had ridiculous, he
supported ridiculous interpretations of quantum mechanics, kind of Copenhagen or many words,
interpretations of quantum mechanics, kind of Copenhagen or many worlds, which I don't endorse. But he once said something very profound, something like that. One day we can be sure.
There will be a theory which will explain all these phenomena in a unified, in a kind
of unified way. And when we have this theory, we will say to ourselves,
how simple, how beautiful, how could we be blind for so long? None of the proposals today for a
unified theory come even close to this vision, okay, with all the plethora of dimensions, spatial dimensions and
compactification and so on. I may be wrong, but you have the feeling that the
universe, the basic laws of the universe underlying all these things
must be very simple. Let me give you only one example. So here is an example.
Remember the Bekenstein-Hawking information loss paradox.
You throw things into a black hole and then you lose information and they are gone there forever
and then it turns out that if the black hole evaporates, what comes out of the evaporation
retains nothing of the information of the objects that fell into it.
It has been a paradox for many years. Most, I believe the majority of the community is still regarded as a paradox.
But then Hawking, the late Hawking came some 20 years ago and said,
I have a resolution to my own paradox.
I believe Bekenstein was no more at that time. I don't remember.
Now, what is Hawking's resolution to the paradox? I don't know. I didn't understand it. I tried
to understand it and I didn't understand it. Does that mean that I'm a moron, that I don't
know enough physics? Very likely. That my mathematics is insufficient, very likely.
But here's my point.
The paradox itself is so simple.
Relativity theory forbids everything, anything to come out of the event horizon.
Just relativity, you can understand it.
You can understand how things fall there, and then you can see that the evaporation, if
it comes out of the vacuum fluctuations which are far from the singularity, then indeed
information is lost.
You can explain it to high school students very easily.
Am I exaggerating in expecting that the solution to the paradox, which is so simple, devastating and beautiful,
would be also very simple, devastating and beautiful.
I mean, this is how usually things work.
I may be wrong, but I'm looking for simplicity and my suggestion for unifying, for looking
for a unified theory of physics is along the lines of simplicity and beauty.
Right. So let's hear this simple and beautiful theory of yours.
So I'm going to propose where do we want to look for the unification in what realm of nature?
And my answer would be paradoxical, nowhere,
no time, and let me explain why.
And my point of departure is a problem
that many physicists dismiss.
They think that it's not a physical problem,
it's not interesting, they relegate it to philosophy,
and I think that this is one of the basic questions
of physics, and this is, I want to say something
about time. So let to say something about, uh, about time.
So let's say something about time.
You and I are talking, um, and we have talked a few, a few days earlier
and, uh, time is going on here is the most, uh, uh, prominent, uh, um,
characteristic of time.
Time is moving.
Time has a passage in space i can remain at one place i can go to the right i can go to the last i can go back i can go force i can choose to run in my place nothing like that is in time always we are in the next moment and time seems to be flowing somehow. So this is the naive picture of time.
Time events come and go.
We used to have Alexander the great and he killed many people and died. And then we had the Genghis Khan and he killed many people and died.
And then we had Napoleon who killed many people and died.
And who knows what is going to be the next moron to make
another war in the world.
But events become events appear and go.
Now we are in the present.
We don't know what's going to happen tomorrow, but tomorrow will become the
now and then it will become past and so on.
That's the naive view.
And the majority of physicists, nearly all of them, especially if they are
doing relativity, especially in general activity will tell you that.
This is absolute nonsense time cannot move time cannot cannot pass even at the level of logic in order for something to move.
Move means being in one place at one time and not the place at another time so hike how can time which is the parameter of all motions motion movie itself it won't help you if you say that we moving time because then you are specializing time you make time.
The dimension on which you are on which you move but then you may need the higher time parameter and so on and so on so actually what physics tells you.
and so on and so on. So actually what physics tells you is the following thing about time as space. If I'm now in Israel, it would be silly of me to claim that Japan does not exist
or Tierra del Fuego or whatever, or Andromeda or other places in the universe. They are
not accessible to me, but they all have the same degree of reality. All the universe,
all the places in the universe, very far, very near have the same degree of reality. All the places in the universe, very far, very near,
have the same degree of reality,
and I have access only to the surrounding.
The same goes with time.
All these events, past, present, and future,
in the four-dimensional universe,
all of them exist together at the same degree of reality.
So how should you and I think about
ourselves, for example? So it's not one avshalom and one court who are talking with one another,
asking questions and answering. We should think about ourselves as four-dimensional word lines
from birth to death, and the word lines just curve according to our travels and motions and so
on. And actually each of us is a zillion of persons, zillions of curts, zillions of
epsilon homes, each of them uttering a single syllable or experiencing a single syllable.
Now, as silly as it is, this is not philosophy. This is actually
the very idea of special and then later general relativity. Let me show how. Think about this
is the paradox that physics teachers love to show at class, the bun and the pole. Here
I'm using a spacecraft and a tunnel. So I have a spacecraft and a
tunnel tunnel at the same length which I use I don't know for washing
spacecrafts and then a spacecraft at the velocity near to the velocity of light
goes through this tunnel. So it undergoes Lorentz-Fijerl contraction such
that I can close the two doors of the tunnel for a brief
moment while the whole spacecraft is within because the spacecraft is contracted and it is
much shorter due to its relativistic motion. Okay, but now this is relativity and when I look at
this from the viewpoint of the spacecraft what I see is the
spacecraft is at rest and it is the tunnel which is at motion so it is the tunnel which undergoes
contraction this way there is no way in which the two doors of the tunnel the front and the rear
could close because they'll break the The spacecraft is longer than the tunnel.
Now here, look, there seems to be a problem because in relativity,
we have here inertial motions and they are all equivalent, but they contradict one another.
And obviously, the two ways look incompatible. They are not incompatible if you understand that the idea of
simultaneity becomes relative in relativity theory. I mean all of relativity is based actually on the
relativity of simultaneity. So obviously we do have the event in which the rear of the spacecraft is still outside of the tunnel and the front
of the spacecraft is already outside of the tunnel. However, there are two viewpoints
and according to one viewpoint the tunnel is shorter than the spacecraft. And according to the other viewpoint, the spacecraft is shorter than the,
uh, than the tunnel.
Both of them are correct.
So one of them is going to say the, the, the one driving the spacecraft,
Hey, to the tunnel, um, operator, you lied to me, you didn't close
the two doors at the same time.
You first opened, uh, you, you first closed the one in the front and then opened it and then the rear and opened it.
So they were not simultaneous.
What I am saying here is that the Lorentz contraction, the very basis of relativity theory,
is based on the notion of the relativity of simultaneity,
which means that when you are talking about
distant events, all of them exist, past, present and future,
such that you can pick your frame of reference in order to
see these objects as becoming contracted and the others
remaining the same or vice versa. So do we understand that
for relativity theory, the passage of time is
something that should be abolished from physics, just like an illusion. There is a very, very
famous and I'm going now to biography to the history of physics. There is a beautiful book
by Jimena Canales about the early history of Einstein and his
encounter with the French philosopher Henri Bergson.
Einstein was hesitant for a few years to say that actually the contraction, the slowing
of clocks and so on apply also to our bodies, to organisms and so on until he understood
that he has to do that in order for relativity theory to be consistent.
And then he had a friend, Michele Besso, it's a famous and very moving personal story.
Besso was a kind of a soulmate who worked with Einstein at the patent office when Einstein was just conceiving the theory of special relativity.
And then he helped him some 10 years later with a general theory of relativity and he
was involved in his personal life, family and so on.
And then Besso was a very good physicist.
Einstein thanks him in the acknowledgement of several of his papers, he became a philosopher, much
to Einstein's annoyance.
And then he told Einstein, look, the theory of relativity is, of course, beautiful, special
in general, but something is missing, the passage of time.
And Einstein told him there is no passage of time, it's only an illusion.
And they were keeping writing letters to one another and Einstein told him, you have to understand. It's only an illusion. And they were keeping writing, uh, letters to one another.
And I told him, you have to understand that this is only an illusion.
And then a few years passed.
Sorry, I should say that it looked like a few years had passed
because I didn't believe it.
And something happened that actually makes you really understand
that what you know, time is passing.
He got the letter from, uh, Michael's son.
My father, uh father is no more.
I'm gonna had four weeks to live.
He died shortly after that.
And the condolence letter which he wrote to Bessel's son
is very famous.
Michele has proceeded me a little
in living this strange world.
This is not important for us, dedicated physicists. The distinction
between past, present and future is an illusion, however persistent. Don't cry son, your father
is not dead. He's alive. It just, you know, in the past. So the young Bessau, the boy
Bessau, the baby Bessau, all of them are still there. They're just not accessible to this part of say Einstein's
worldview is longer, four weeks, one month, uh, than that of Bessel.
But you know, the interactions between them keep going on.
I think it's ridiculous with all respect, but okay, there is no way to disprove it.
And you can see that relativity of regrets rests on it.
Just a moment.
What is ridiculous.
Court.
You don't know what you're going to do tomorrow, right?
With your wash dish or whatever.
Now this guy tells you that it's already there.
Whatever you decide.
I I'm sharing with our viewers that you got a new dishwasher.
So what are you going to do with your dishwasher tomorrow?
Are you going to be happy with it or not?
Are you going to smash it because it will annoy you?
Oh, I don't know what you have not decided yet.
Now this guy, I'm telling tells you that the future Kurt is already there.
Now, this guy, Eintran, tells you that the future Kurt is already there. I wouldn't say already, but he has the same degree of reality as the present Kurt and
the past Kurt.
Are you okay with that?
Don't that strike you as...
Silly.
Just for some context, the dishwasher here broke.
We're renting this place, so the landlord
had to replace it.
And in case you're familiar with the backdrop, you'll notice there's a hole where the dishwasher
should be.
But anyhow, what you're objecting to is that the choice is removed, free will is removed,
our experience is removed, or what?
Whatever you think, you know, you can't change your past, right?
You can't affect your past.
It's done.
But you believe that you can change your future.
And this guy tells you that you can't.
You can pretend you can believe in that, but actually the future is just as real as San
Francisco.
You're not in San Francisco now or Calcutta or wherever.
They are real.
They are not accessible to you, but they are just as real as the place where you are in now.
So all times are just as real.
So think about that, that all our lives, past, present, future, the whole history of the
universe is there just like single frames
in a movie.
And just for some reason has to do with the second law of thermodynamics.
We can talk about that.
We have zillions of selves, zillions of cuts, of shaloms, and each of them resides in their
own moment.
Each of them has the memories of the previous ones.
So each of them, he believes that he is the one.
Okay.
I believe that I am the after long that woke up this morning, but he's still
there waking up and so on.
What I'm saying is what is actually derived rigorously from special relativity.
I've shown it with the Lawrence contraction.
You won't have Lawrence contraction if you believe that there is some
absolute simultaneity, simultaneity is relative, which means that you need to
have many times if you have events past, present, future, in order to pick the
pair of events, which make things shorter or shorter or not.
Okay.
Right.
Now Einstein himself was not very happy with that.
He told Carnot that the fact that the motion of the now has no place in
physics, he considered it as a matter of painful, but inevitable resignation.
That means that he was not happy with it.
Uh, and many physicists say, okay, he was not happy. I i'm happy with it i still think that there is something very mysterious and few people think i have this opinion i believe project and rose has entered a similar idea.
Paul davis many years ago i wrote a book in which she entertained this idea also then later he he said, no, I can live with that.
But there is something very strange
believing that all our life past and future
are just there to the same degree.
Am I the only one who feels this is uncomfortable?
Are you okay with that Kurt?
We can make this dialogue more personal.
Do you see that there is a problem here?
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I see there's a problem with our experience of the flow
and that we have a special moment called the now.
So not only do we have a flow of time,
which this contradicts,
but there's a now that's distinguished
and that is to set aside all the issues
with free will or choice.
There is something unique about this moment.
It's already gone.
Next moment, and next moment.
There is something fitting, but always there is a moment which for us is special, is unique.
And we believe that there is something to it.
And physics tells us, no, all of them
have the same degree of reality.
And you believe that you are not the same Kurt
as the Kurt who just bought the dishwasher
or was frustrated for not having a dishwasher.
And the future ones have the same degree of reality.
You can see that Einstein was not happy with that.
Professor, the reason why you're sensing reticence is that while I may be uncomfortable with
an idea, I am comfortable with the uncomfortableness.
So it's difficult for me to evaluate which one is the one that I'm feeling.
Is the one that's the visceral emotion, the one that I should prioritize, or is it the
one that's the deliberation afterward, And is it even a deliberation?
And regardless, to me, it's irrelevant because I have to put aside my own
psychological disposition when evaluating an idea as I have to look at a concept
or a theorem or a result, whatever it may be, devoid of my own predilections.
The idea or whatever it may be may have merit, but I would have prematurely discarded it
had I assessed it with an emotional lens.
So in other words, while emotions are extremely important, it's difficult for me to evaluate
which is the one that I'm feeling.
Is it the uncomfortableness or is it the comfort that I feel with the uncomfortableness or
is it something else atop that? Which of these nested hierarchies
of I is the me? And lastly, I see it as something that is besides the point and could get in
the way of the point anyhow.
So we can say, okay, you know what, this is a philosophical problem. We have all kinds
of illusions, optical illusions, auditory illusions. So the feeling that time is moving
could be just another illusion. However, that's not the only problem with time. There are
other problems which are completely not philosophical and they are a problem for physics. Think
for example about the time asymmetry. Physics, the basic laws of physics are symmetric in
respect to all dimensions of space.
You reflect something in the mirror, then the physics that you see in the mirror under
this reversal of right and left is just the same.
Put a mirror here on the ceiling and if I drop something it will fall upwards because
physics does not distinguish between right and left, up and down and so on.
These are only local conditions.
This is what makes the laws of physics so beautiful that there is no distinction.
Uh, the, the, the laws of physics are symmetric, you know, the CPT theorem,
you know, um, okay.
Right.
The same holds for, for time for the basic interactions.
There is also a complete symmetry.
You take a basic interaction, ignore friction for a while.
And then, so you can reflect it not by a mirror, but videotape it and run it backwards.
And the laws of physics are just the same.
Okay.
So there is, and there are beautiful combinations of these symmetries, time and space.
You reflect something in the mirror and then run it backwards and you get all the things back.
They are very nice exercises to show that with respect to these symmetries, time is actually a dimension like the three ones.
But the difference, that everywhere you look in the universe, so there is no left and right up and up and down back
back and forth. The universe is completely indifferent to that. But with time,
every place I look in the universe, cups of coffee cool down and every place in the universe will
where milk is spilled. There is no use crying over that spilled milk because it is irreversible.
The whole universe points out
when you are talking about macroscopic events always to the same direction.
Entropy goes up. So that's a time asymmetry. How does this asymmetry emerge from the basic
symmetries of the laws of physics? Good question. Many, many books, many answers, but it's not
the only asymmetry time asymmetry. The universe is expanding.
The universe is not contracting.
Although you could think that it could contract.
So why is it only expanding?
If you don't believe that it will end up in a, in a big crunch.
Here's another asymmetry for you.
We have mentioned gravity.
So when you have black holes, you have black holes, you don't have white holes.
Even if they evaporate,
so you have another asymmetry.
And then you have this asymmetry, subatomic asymmetry connected with the weak force, which
shows that actually there is a slight error of time even at the sub, in the particle
sperm.
There's slight error of time or there's slight left-right asymmetry?
No, but you also have a T-symmetry.
Remember, this is what Tuft got the Nobel Prize for.
There are a few interactions in particle physics
which somehow distinguish between past and future.
Why is that?
How are all these asymmetries related to one another? Is there
one master asymmetry from which you can derive them? How can you try to derive the second
law of thermodynamics, the thermodynamic asymmetry from the cosmological asymmetry? The universe
is expanding, so there is more space for mess to occur. So this is
the reason why disorder is growing. And then Daniel LeFlamme showed him that it won't work.
Suppose that the universe begins to contract. Would you expect at the moment that the universe
begins to contract back that all cups of coffee would just, you know, absorb
back their heat and we should become younger and so on and so on.
You can show that this, there is no mechanism that shows that.
So it looks like thermodynamic asymmetry is not directly related to the cosmological asymmetry.
Can you derive them from another asymmetry? These are all big questions.
Do I know the answer? No, I don't.
But that should be a hint that if we are unhappy with
dismissing the passage of time as an illusion,
we have good reasons for that.
There are a few other problems with time that we don't understand.
And you can feel that they are very strongly related.
Was the disagreement between Einstein and Minkowski about time as well?
Do you want to go into that story?
Is there some, uh, uh, uh, Einstein waiver, but that's more personal story.
You know, Einstein was offended by Minkowski's comment about him being a lazy
dog for not attending his classes. But then when Minkowski heard that his former student
had developed the theory of relativity, he said, okay, I can rephrase it mathematically.
And I remember that Einstein mocked the idea first. He said, I heard that the mathematician has made my special relativity incomprehensible.
Then when he had to develop the general theory of relativity, he had to pick up the Minkowski's view and, you know, appreciate it and make it part and parcel of relativity theory.
It's tragic. I don't think that they ever. I wonder whether they ever spoke to one another.
There is no record of them exchanging letters between them or meeting. Was Minkowski happy,
proud of his former student, although he called him a lazy dog? That's an interesting question.
To the best of my knowledge, we don't know of any interaction between the two.
But Einstein was arrogant about this geomathorization of relativity,
later completely adopted it.
He wouldn't be able to do general relativity without the idea of four dimensional space-time continuum,
because it is space-time which curves around mass.
So there was no controversy.
There was some, shall I say, slight dishonesty at the beginning or something.
It was hard for Einstein to accept an idea which was not his own.
We owe it to Minkowski and it's just as genius.
Do you think that we're approaching a paradigm shift in quantum mechanics similar to how
there was the quantum mechanical shift from classical mechanics?
Absolutely.
Sure, that's what I'm going to show. I believe I was
privileged to do to be with a man of great genius, Yakira Aronov, who is my mentor. And some of the
advances that he has made during the last few years, last decades are indeed a real paradigm shift.
in the last decades are indeed a real paradigm shift. So some of these I want to show here.
Okay, so my idea for unification
begins with the assumption of becoming.
I want to propose that becoming is real.
You want to unify physics different theories
with all the respect to string theories
and other four, 10 dimensions and so on and so on.
Just look at the four dimensions that you have,
look that there is something unique about time. By the way, we were talking about Minkowski. another four, 10 dimensions and so on and so on. Just look at the four dimensions that you have looked
that there is something unique about time.
By the way, we were talking about Minkowski.
So in Minkowski's geometry, time is unique, is distinct.
You have to add this imaginary ingredient to the tea, right?
Such that you have to make the tea minus
when you scrape and so on.
So Minkowski himself had to make time unique in this respect.
You are just now giving me an idea.
Perhaps that was what made the geometrization of time a bit difficult
for Einstein to absorb because even in this picture with which I'm trying to take exception,
with all due respect, time is actually unique. You have to assign it the minus sign. So there
is something unique already there. So I'm proposing to take this as the beginning of
physics. Rather than adding other dimensions, let's look at time and say that time has indeed
this passage that the passage of time is real for reasons that we don't understand.
So time events are created anew.
Okay.
This moment, it is not that it's there all the time and just it is now the present cart
and the previous cart and previous epsilon are still in the previous one. Just when I say it, it's so dumb. Nevermind what I say.
But is it the same distaste you have for many worlds
that you have for this block ice-like universe of time,
which are just etchings in a block of ice?
You know what? Yes. Can you imagine that according to...
So I should say that, you know, Lev Weidman, with whom we have discovered
the Elitz-Weidman experiment, is a fan of the many worlds.
I mean, he's now dedicating all his time to prove the many worlds interpretation of quantum
mechanics.
And I love him dearly.
But I think it's ridiculous.
Can you think about that, that from the moment we began this talk, there are zillions and
zillions and zillions, I can't count them, of curts and afshalums in parallel universes,
just because some place, whether it was my neighbor or somebody in a very remote galaxy,
there was a quantum event.
Well, you had, now you have two universes, just because of that.
It sounds like you view the adoption of many worlds as a theory from a friend of
yours is the same lamenting that you have when a friend gets addicted to hard
drugs where you're like, Oh, what a shame.
What a pity.
Look, I will deny if you say that I say that, but I'm going to say it.
Okay.
You know, when you are a physicist, when you are young, you will say, yeah, I'll
be the new Einstein, I'll reunify all theories and I'll have a unified theory and so on.
Then you have to do your PhD and you have to look for a postdoc and you have this trouble
and this trouble and this paper is rejected and the other paper is rejected and people
just shut you up and you'll become more modest.
And you say, okay, I won't make the huge revolution.
I'll make the smaller revolution and smaller revolution. This is how we become modest during our career. However, the ambition
is still there. At least in my case. Maybe one day I'm not that old, I'll manage to have
the unification.
Great.
Every time that I hear that a good physicist adheres to the many worlds interpretation, I say, good, one less.
The competition is very strong.
He is not going to make it because they become so satisfied.
It solves all the problems.
And you know, proper distinction between science and pseudoscience.
A theory is scientific if you can disprove it, if you can refute it.
No test that you can do that can disprove the many worlds, just as you cannot disprove it, if you can refute it. No test that you can do that can disprove the many worlds,
just as you cannot disprove the bombs guide wave or Copenhagen or whatever, they are equivalent.
But people are very happy, people who endorse these theories and sometimes they stop doing physics.
They say physics is complete, We have solved all these problems.
So yeah, I don't think so.
I think that there is something missing in physics and the missing thing in physics is the thing that every person in the street, children here in my
neighbor's yard or whatever, they'll tell you time is moving.
There is a passage of time.
Now, you know what, let's stop for a moment because the moment I
going to say that people are going to, you know, uh, the penalty would
be some logical paradoxes if time moves, if the now really moved, there
is a real motion of, of, of, of the now.
What's its speed.
So I need a DT DT, some kind of, I need the higher time.
And some people try to invoke a higher time, but then that higher time
with another would again require another, another higher time.
Otherwise you will have a block universe of five dimensions or whatever.
So that would lead to an infinite progress.
I don't know the answer to that.
I believe I can show how to avoid it, but I understand why people don't want to do
that and I say you want a break through in physics, you want a paradigm shift as
you're saying physics, you want to go forward.
Let's take this as a hypothesis that indeed time is moving.
Okay. So there's been a new event. It's not that
it's there for all time and it is just this self which remembers, you know, according to the model that now there is a new epsilon, but it's not new. I've been here all the time, but I have the
previous, the memories of the previous epsilon. So I believe that it is just this moment.
Let's assume that every time that something happens, this thing is created.
Okay.
So we assume that events are not wordlines.
Perhaps there are wordlines, but there is something drawing them.
Okay.
Okay.
Imagine wordline with me or you, but it's not frozen.
That's part of the now, which is so unique.
It may have you're hinted to that, to the problem of consciousness,
which is so unique and, and, and it's still outside of physics, but how
about saying that indeed the world lines are being drawn somehow, and
actually every event is new.
So when we feel that this is the now and this is new, perhaps we are right.
And perhaps from this we have to begin all the critics.
So are you saying, like let's think of a stick of dynamite.
You know a dynamite has this string in the cartoons, there's a huge string and then you
light the edge and then it starts, there's a little fire and it moves about it.
Good.
Are you saying that in addition to that spark which characterizes the now,
the string itself is moving?
Ah, good question.
Can you affect the past?
Actually, quantum mechanics, and this is what I'm going to show,
leaves some place for retroaction.
They're limited.
Things in the past are not
completely fixed. So yeah, this is what I'm going to show. We have some very good proof for that.
Some experimental works showing that. Actually, you know, one of the interpretations of quantum
mechanics is the transactional interpretation of quantum mechanics. John Kramer is the only living
of quantum mechanics. John Kramer is the only living interpretation maker still with us. I had the privilege of meeting with him. He quoted our works many times. So it's a very
beautiful interpretation. He takes the Wheeler-Feinman absorber theory from classical electromagnetism
and applies it to quantum mechanics. And he says that every quantum interaction is the result of two wave functions,
one going from the past to the future, one coming from the future back to the past.
There was an idea that Willem Feynman back in the 40s of the previous century presented,
which is mathematically very beautiful, and then Kramer applied it to quantum mechanics.
Are you aware of this interpretation, the transactional interpretation of quantum mechanics?
Yeah, I actually have a sub stack where I outline the top 10 most popular views of quantum
mechanics.
And then I explain them.
I'll show a link on screen, not for you, because it'll take us away.
But the transactional interpretation is there as well.
Then I'm going to describe the two-state vector formalism
by Yakir Aharonu, who shares with Kramer the same idea
that every quantum interaction is
the result of two wave functions, two state vectors,
and that you have to bring them together.
This is what I'm going to show.
And I think that this brings new horizons to quantum mechanics
to the point that we may really have a breakthrough
and a new physics, which is just as you said,
is so new relatively to quantum mechanics
as quantum mechanics is new relative with respect
to classical physics.
Yeah, but then again, if the retroactive models interpretations of quantum mechanics are correct,
that's another indication that there is something still ill understood about time.
The fact that you can, in some cases, affect the past. So even the past is
not fixed.
Now, before we get into the details with the slides, when you talk about retrocausation,
people hear that and they think time travel. So what is your distinction between those?
No, if you really believe that there is a becoming, so we have block universe, which is the dominant
view, the orthodox view, and what I'm proposing the alternative is becoming, that actually
says that there is events are becoming, then time travel is not possible because the past
is really dead.
Perhaps there are world lines, actually Lee one said that a block universe is correct about the past.
So you suggested that you know there is something which creates the world lines so perhaps the past is somehow there but the real world is just the present and it is being created that and i know i don't know, but then that means that you can't travel back to
backwards in time and kill your grandfather and so on.
Once again, there are people who do believe that you can go backwards in time, but then they, in order to prevent all kinds of grandfather paradoxes, they
invoke the many words interpretation.
So they support one ridiculous idea by, by another, I don't find it really exciting.
What I'm proposing is something different.
Now, speaking of ridiculous conjectural ideas,
a deliberation that I was toying with
is how do you maintain a notion of having a fixed future
given a past while leaving room for choice?
Can you do so? Can you make those reconciled or harmonized? future given a past while leaving room for choice?
Can you do so?
Can you make those reconciled or harmonized?
One way is that rather than selecting from different possible futures, which is what
we traditionally think of as what free will may be or choice in general, what if you have
a selection of different pasts?
So that is to say that we think that with our choices we create
a future event, but it's more like
rather what we do with our choices is
we're selecting from different pasts
and the future then changes accordingly.
It's not becoming,
it's be-pasting.
But anyhow, I want
to hear more about your idea of
becoming.
Good question. What I'm proposing is want to hear more about your idea of becoming. Yeah.
Good question.
What I'm proposing is that if there is a becoming, this becoming is the master asymmetry of time.
So the second law of thermodynamics, the cosmological, uh, arrows, time,
gravitational, all of them in some way that I still can't, can figure out.
They can be derived from it. in some way that I still can't figure out,
they can be derived from it. So becoming is the cause, is the master asymmetry,
which lies at the foundation,
which underlies all the other asymmetries.
And I want to show you how sometimes
you can pick a special
pest, at least at the quantum mechanical realm.
I wish I could, you know, we could, um, pick up another pest, but I want to
show that the quantum mechanical realm.
You can pick in a very, uh, non-trivial way in different paths and get
very interesting results from them.
Okay, let's hear it.
So here it is.
Let's assume let's take the becoming just in the view that indeed time is moving as the very foundation of physics.
Forget about relativity, how you reconcile it with quantum mechanics.
It will be easier, but let's follow its consequences.
With quantum mechanics, it will be easier, but that's follow its consequences. And I want to begin with quantum mechanics.
And you know, quantum mechanics has a difference from classical mechanics in many, many aspects.
It is non-local.
It has superposition.
It has uncertainty.
I would like to propose that one of the main characteristics of quantum mechanics is its, um, extreme time, uh, uh, time symmetry such that
events can occur and then unoccur that in quantum mechanics, sometimes you
abolish events that already happened in a way that actually they don't exist.
That you are changing your past.
This is a walk by a Leo coin and myself.
And then I think that and we argued in a paper that this is a key for understanding many auditors of quantum mechanics for example the bomb testing experiment of vitamin and myself and myself. So, uh, uh, let, let me show you perhaps.
Yeah.
I'll come back to this later, but here it is.
Okay.
Can you see I'm showing you two particles which are split by a beam splitter.
So on the right, you'll see an electron on the left, you'll see a positron,
one yellow, one red, and now this is a, I'm following an idea, a very famous experiment proposed by my friend
Lucian Hardy many years ago, but with a slight modification.
I arranged them such that the left part of the electron's wave function is going to cross
the two parts of the positron's wave function is going to cross the two parts of the positrons wave function.
Don't worry about the experimental details, timing and so on, but it goes like that.
That actually they have a chance to meet and then give rise to annihilation at two points.
Can you see that their interaction is asymmetric?
The electron may meet the positron either at the first intersection or at the second intersection.
Suppose that I can make it and today it is actually even possible to arrange an experiment in which they can meet.
Now the question is because they are in a superposition, you are not sure that they'll meet, right?
The electron may go actually to the right and never meet the positive one right and also if it were to hit this
It would hit the right one or the left one not both and it would hit the right one
First absolutely and the left one later absolutely and it will only hit the left one if it did not hit the right one wonderful
Thank you very much. Okay. Lastly on the right hand side
Is there a reason that it's going at a slower speed?
Or it doesn't actually matter?
No, just out of convenience.
Just in order to give it a chance, but you can arrange it in another way.
So just for graphical convenience.
Got it.
So you postlect it now.
In some cases, you will have an annihilation in the first encounter, and then you discard
this experiment.
In other cases, you're going to have an annihilation in the other intersection.
Okay?
You place those two detectors for gamma photons, and you see whether you register them.
So you discard these.
What about the cases in which both of them do not occur?
Now you have an interesting situation.
You have made a measurement.
So far, they were measuring the position of one another, kind of doing a measurement,
whether they are on the right and on the left.
But once the two tactics remain silent,
you understand that the electron is not in a superposition anymore.
It went only to the right.
That means that if you perform
an interference experiment with the electron,
you will see it sometimes emerging to the left rather than to the right,
because the wave function has now changed.
Okay?
Do you understand it?
The uncertainty principle says that if you have measured the position, then you have
lost the momentum.
So in this case, now there is no more superposition.
And if you try to combine the two parts of the V to this Mach-Zehnder interferometer, interferometer
will be lost.
So, the momentum of the electron has changed.
Do we agree with that?
Yes.
No, wait.
Just a moment, just a moment, please.
So all I know is that if you don't see any ticks in the photon counter, that you can
deduce that the positron went to the right.
No, here is the surprise.
Yeah.
Uh, uh, the, the yellow is the electron, I think.
Yeah.
So you did.
Okay.
I did those that the electron went to the right.
Now suppose that after that, you know, I can, I can make an interference experiment.
You agreed that with the positive one, I can make an interference experiment. You agree that with the positive one, I can make an interference experiment,
place two mirrors, and then bring them back,
and then I'll get interference.
The momentum will be preserved.
Okay?
Okay.
A Mach-Zehnder interferometer is a device by which a particle
goes through a beam splitter just like this one.
So it goes either to the right or to the left.
Then you place two mirrors on the two sides,
and then you recombine the two parts of the wave function.
So you actually don't know whether it went to the right
or to the left.
This is the Litz-Rabidman bond testing experiment.
We are basing our work on the Mach-Zehnder interferometer.
So this is a Mach-Zehnder interferometer.
So suppose that I now try to reunite the two halves of the yellow electron in order to get interference.
I will not get interference. It will emerge sometimes to the right or sometimes to the left because actually its momentum has changed.
Think about the positron on the other hand. If you reunite back its two parts,
it will always go to the right due to interference because it is in a superposition.
There is another way that I can show it to you.
As you can see, both the right and the left are encountering two mirrors.
The electron and the positron.
Okay.
You can see it here.
The two solid lines, the black lines, look at the positron on the left.
So the two black lines are mirrors. So if you bring the two halves of the wave function back, they will always go back to the source.
Because you are time reversing the whole thing. function back, they will always go back to the source. Okay.
Because you are time reversing the whole thing.
Yes.
Suppose that you do the same thing with the electron and you place a mirror here
and a mirror in the other place where it could have gone, has there been no, uh,
and no positive, it will also go back to its, but in this case you can do the
experiment and in half of the cases, it will not go to the source it will go to the wall.
You have changed the momentum of the electron.
This is called a this is not a mass and the return from the door it is a it is a michaelson interferometer it's a one. You split the particle into two and then bring,
reflect back the two halves of the ray to the first beam splitter. So of course they'll
go back to the source. But as you can see, the electron's momentum has changed. In half
of the cases, it will not go back if you reflect it by the mirror. It will not go back to its source, but it will go to the other side,
okay, because one half of the wave function has disappeared.
Right. Now that's provided that you detected no photons,
or that's only because of the presence of the two?
Ah, no, no, no. Suppose that there was no positron and just the electron has been, just as I showed earlier, the electron has been split into two.
So suppose I place mirrors on the two, four mirrors on the two sides.
So you understand that if there was no positron there, the electron would just go back to its source undisturbed.
Correct.
Now that the two annihilations did not occur, you see that the electron is disturbed. Correct. Now that there were no... the two annihilations did not occur,
you see that the electron is disturbed.
Right.
But now there is something strange.
The positron remains oblivious of the whole thing.
There has been an interaction here between them.
So you had two bodies interacting with one another.
As a result of the interaction, one of them, its momentum is changed, and the other remains
completely oblivious of this interaction.
Why do I feel that there is a law from 1666 that somehow, you know, that this interaction is not compatible with it.
Right.
Here's Newton's third law of action and reaction.
And you'll see two, an interaction between two particles.
One of them is affected.
The other is completely unaffected.
Now, what if someone says, okay the Positron is not
affected but the composite system of the Positron tensored with the photon
detectors are? Sure. As a Fizz member you can look forward to free data, big
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Still, there is something interesting. You don't have anything like that in classical physics.
In classical physics, when you run a process backwards, then either everything is run nicely backwards or all parties are affected.
In this case, actually you can show that for a while there was an entanglement between
the electron and the proton.
If one is on the right, the other is on the left.
If that one is on the left, the other is on the right. And then actually, the past is undone.
The entanglement between them is dissolved and the positron goes back to its state.
We called it quantum oblivion.
And we showed that many oddities of quantum mechanics, interaction-free
measurement, the Harvonov-Bohm effect, the Zeno effect, quantum erasure and so on,
all are based on this capability of quantum events to become and then unbecome.
In other words, there has been a time in which there was a virtual gamma photon going to the first detector.
It's been there for a while, but then it was undone.
The possibility was wiped out.
The same with the other detector.
So you are correct in saying that there are photons here which we do not see them,
kind of virtual photons that could have exist, but they did not exist.
All this shows you that in quantum mechanics, there are events that you
no more see them and you don't see them anymore, but they have been there.
And the past is in some way being obliterated.
I I'll I'll give you a, when, uh, the end, I'll give you a reference to some of our works.
So this is a work of mine with Leo Cohen from Bar-Ilan University.
And it's very detailed and we give many examples to that.
How you're actually affecting the past and you are, we call it quantum
oblivion because it is not we who forget what happened, but it's the universe.
Nothing in the positron leaves any mark, retains any mark of the
interaction that has been here.
So one of, one of the parties is affected and the other is completely out of it.
Actually, if you want to understand the bank testing experiment of Weidman and
myself, you know, this is a paper that has been rejected by, I believe, poor journals because they said, we've never heard such a nonsense. It is not
possible that a bomb that could explode and just because it could explode, but it did
not explode, then it will change the momentum of the photon. And we said, yes, it is by
the formalism. Now Cohen and myself argue that you can understand the ISM,
the bomb testing experiment and all other kinds of ISM
just by that there has been an event
and then it has been obviated
and the bomb or the detector remains oblivious of that.
But for a very brief time there was an event
and then it unaccounted.
Interesting.
This is what I'm going to show in greater detail.
So yeah, this is the paper by Cohen and myself, quantum oblivion and master key for many quantum
riddles.
And this is the bomb testing experiment.
We may say something about it later, but I argue that, okay, here is your Mach-Zehnder
interferometer.
So this is what, when you asked me, here is a Mach-Zehnder interferometer. So this is what, when you asked me, here is a Mach-Zehnder interferometer.
Okay.
Here's a photon going to the beam splitter going either here or there.
And then if there is no bomb here, the photon will always go to the right
because it retains its momentum.
Okay.
When you make a measurement, then of course, you know, you know, it's
positioned, but then you lose its momentum and it may go to, to, to the other two.
So Biden and myself said, place not two detectors, only one and make it more
dramatic place a bomb in some cases, the bomb will explode, but in other cases,
if the bomb is good and the photon went to the left, then you can be sure that
the bomb is explodable, is good without destroying it.
That was the question that we have asked.
Suppose that you have the most sensitive, you know, the, uh, I guess, you know, the
bomb, uh, and it's a biome bomb testing experiment.
Okay.
You had the most sensitive bomb possible that a single photon can make it explode,
but now you're not sure whether it's working or it became rusty and so on.
Suppose that you have many bonds like that and you want to make sure that they're okay.
So we have showed that and there is a mystery here.
There is an unevent.
An event did not occur just by the fact that it could have occurred.
It leaves a physical trace.
The photon goes to the left rather than to the right.
You understand why I am not angry at all the journals,
the Nature, Science, Physical Review, Letters,
and so on, who rejected our paper.
I can really understand them.
They said, I've never had such a nonsense.
Something did not happen,
but just because it could have happened,
it leaves a trace. Can't be.
And then came Zeilinger and made the experiment and later got the Nobel Prize.
And then Sir Roger Penrose gave us nice publicity and he also got the Nobel Prize.
You better be nice to me.
People who are nice to me tend to get Nobel Prizes.
So for people who have just tuned in, they skipped forward to this point, I recommend that you look up the BOMM experiment.
Oh sure.
Many physicists who are quantum physicists, they say that this is more remarkable, more outrageous than the double slit experiment.
Okay, and I believe that this is if you want to have a unified theory of physics
Here you have a clue and I'm gonna propose some other clues
This is my mentor. Yeah, Kira. I have one of his as I said is now
92 still active still very sharp and he proposed a new interpretation of quantum mechanics, but it's more than an interpretation We know the existing interpretations of quantum mechanics, but it's more than an interpretation. We know the existing interpretations of quantum mechanics. Copenhagen, many worlds, guide wave, this one, that one,
and all of them give you exactly the same predictions, so they remain interpretations.
Their predictions are just like those of quantum theory itself, they just make it more reasonable.
like those of quantum theory itself, they just make it more reasonable.
Okay. Now came Maharonov and said, I'm proposing you a new formalism.
It is completely equivalent to the quantum formalism, but lo and behold, when you make the calculations, you are going to get surprising results.
Now these results that you can test in the lab are compatible with
quantum theory. However, how is it that no other interpretation of quantum mechanics
has derived these results? Do you understand that this formalism is more than an interpretation?
It does not contradict quantum theory. But if you use it, you get a plethora of new predictions
that only in retrospect people say, ah, yes, this is compatible with quantum theory.
But the two-state vector formalism enables you to make surprising predictions that no
other formalism would be able to make.
And this is why I believe that it brings it very closer to a new revolution in physics.
And I want to show an example of that.
Please.
So here it is.
Let me go back to the difference between classical physics and quantum physics.
This is classical physics.
In classical physics, and you mentioned determinism, When I have the initial conditions of a process, I can compute the trajectory and I know exactly
where the cannonball is going to fall.
Okay?
This is determinism.
Just make the calculation and you derive the trajectory.
So much so that if you shoot it backwards from a similar cannon, you know where you're going to get
it, where it's going to land, right?
Right.
It's going to go back to its origin.
So here you have two characteristics of classical physics, determinism and time symmetry.
They go hand in hand together.
The determinism gives you time symmetry.
So you don't have to make the calculation backwards.
It's redundant. It gives you the same trajectory.
Or if you make the real experiment and shoot it backwards at the same velocity,
you will get it back at the source.
So that's trivial.
Okay? So time symmetry and determinism go hand in hand.
Things are completely different in quantum mechanics.
When you shoot a cannonball, in this case a particle, you don't know where it's going to land. Okay?
So it gives you a kind of a wave and it may land in several places. And here, if you detect
it somewhere and you want to shoot it backwards, you lost time symmetry too. It may go to other places. Okay. So quantum mechanics actually makes you lose both these cherished
characteristics of classical physics, determinism and time symmetry.
And I've shown that and now I'm coming to your key Arbonov.
So this is classical, this is quantum.
And now Arbonov proposes the two-state vector formalism
of quantum mechanics.
Let's call it from now on TSVF.
What's new about this?
Say Aronov, make two calculations, compute it forward, then compute it backwards because
it's going to end somewhere, So you have two wave functions.
In classical physics, the backward going wave function is redundant. You don't need it.
You can use it just to make sure that you did not make a mistake, because it doesn't add anything to your knowledge about that trajectory. Right? Suppose that I shot a cannonball and you find
where it fell, then you compute it backwards.
Of course, you will get the same trajectory.
So the two calculations give you exactly the same story.
Okay. So one way of saying that is unitary, correct?
Fine. Yeah, very good. Thank you.
Now, the two-state formalism,
is it not unitary or does unitarity emerge?
Is it unitary or does unitarity emerge?
In a subtle way. Yeah, good question.
But unitarity is here being a challenge.
Look, unitarity is challenged by quantum mechanics.
But in quantum mechanics, people will tell you, just pick the parts of the wave function that did not go into the second at the third cannon ball
Cannon and just bring them together. You may get back then
You can you can time reverse the whole thing
But here is the problem that you can time reverse it the moment you made a detection. It's irreversible
So I believe that unitarity is not conserved
I won't speak on our on off's behalf. You, you may have a talk with him.
Uh, I was, uh, made to, to hear that, uh, Bill Unruh does not believe in unitarity.
Yeah.
Unitarity is not that sacred.
Actually, if we are proposing becoming, uh, then I'll say that every time that
you make a quantum measurement, you could not predict it, there is something new
coming into the universe, which is just new,
which is just being added.
We can come back to this question.
Sure.
But now you combine the two, the two equations and what do you get the gains?
First of all, uncertainty is being kind of outsmarted.
You know, perhaps that at the morning I took a particle and made two First of all, uncertainty is being kind of outsmarted.
Perhaps at the morning I took a particle and made two measurements, one at the morning,
one at the evening.
And the two measurements are of two non-commuting variables.
One say position and momentum.
Then the TSVF tells you that about noon, you know for certain, both the position and momentum, then the TSBF tells you that about noon, you know, for certainty,
for certain, both the position and momentum of the same particle, which the uncertainty
principle forbids you to have.
Suppose I measured the sigma X spin of a particle and then the sigma Y at the evening.
They are non-commuting.
Okay.
So if you measured one of them, the other becomes, uh, uncertain and vice versa.
However, at the time between them.
Now at noon, you know, both the, the, the spin of both X and Y.
Now, have we violated the uncertainty principle?
No, because this is now at the past, so it is protected.
But it turns out that between measurements,
a very interesting physics is happening,
which is much richer than the one allowed to you by present-day quantum mechanics.
Then I want to show you another thing.
Non-locality is now explained.
Let me tell you why. Think about the EPR experiment.
So two particles go from the same atom.
Alice measures this one, Bob measures this one.
And when they do something very special,
pick, make a choice between two measurements,
when they compare the results,
it turns out that the choice of Alice has affected the results of Bob and vice versa. How could that be possible?
If you allow the wave function to go backwards, then you have a simple zigzag in the past.
You can see that. So think in four dimensions, just as we did with relativity theory. So
you have a kind of V going from the past to the present. So
you have these two trajectories going in a V shape. So once you make a measurement, you
affect not only the future of the particle, but also its past. So it goes back to the
origin of the two particles. And then it goes zigzags again to the other particle, kind of. So that
gives you a very, this is similar to what Kramer has proposed in his Transactional Interpretation.
So you have a very elegant way of explaining non-locality just by allowing things to zigzag
in four dimensions rather than in three. So in three it looks local, but in four dimensions, it looks, in three dimensions, it looks non-local.
But when you think about four dimensions, then it's completely local.
I think that this is very elegant.
Okay.
So in other words, locality is still there.
It's just, it looks violated from another perspective.
Right. So that's the second game.
But here's the third and the most amazing.
I want to show you a new physics emerging from that with good interesting results, amazing results.
Here it is. So you remember this. I send the particle through a beam splitter.
And now I have two detectors. So it's a dashed line. I have two futures and
I don't know which of them is correct. Right. One of them is going to materialize and the
other is not. Okay. It's one particle. So either the right hand detector is going to
click and the other is going to remain silent or vice versa. And then I wait and this one
clicks. I'm going to call the right side real future and the left side fake future.
Is that okay?
Now say that run off, run the process, compute the process backwards.
If you compute it backwards.
So you got to click at the right hand detector and now you'll say, I
want to compute the past.
Of course you're going to get something ridiculous, right?
In half of the cases, you're going to get it going back to the source.
But in the other, just by computation, you get that there was a false origin, say, from
the wall or something like that.
And if you really do the experiment, say, you manage to eject the particle back to the beam
splitter, then of course it will not always go to the source, it may go to the other side.
So this is a kind of fake past.
We have one fake future and one fake past.
So people can tell Aharonov, look, why do we need all this headache?
It is enough that we have the fake future here.
I don't have to worry about fake past.
It's just a joke.
I don't have to take it into account.
It doesn't add anything to the calculation.
Quantum mechanics is hard enough with what we have,
with the wave function going forward,
rather than having now your second state vector going back from the future to the past.
We don't need it.
And I want to show, following our Ronald, that you do need it.
And here is my claim.
Give me a history when you have fake future, as you have seen here in blue, and fake past.
But give me an experiment in which there is an overlap between them.
What happens when you mix blue with red?
What color are you going to get?
Purple.
Right.
Yeah.
We both graduated from kindergarten.
And the purple, you're going to get a real effect and you're gonna be really surprised so here it is.
This is nested mzi do to live i'd man and it's similar to the max and the interferometer that i showed you earlier okay to be in spritters and then and give kind of this unification but here it's a bit different.
The first being splitter does not split the beam to half and half, but one third and two
thirds.
Then here you have an ordinary Mach-Zehnder interferometer.
It splits this part of the wave function into two halves, reunites them, so if you did not
disturb it, it will always emerge here.
Perhaps I should have shown a real Mach-Zehnder interferometer.
What you see here, ignore the other, is the ordinary Mach-Zehnder
interferometer that you see in all laboratories.
A wave function going through a beam splitter, going to two mirrors,
then being reunited and then continuing here.
Why is it that it's two thirds of BS1 on the right hand side and one third?
Ah, okay.
So this is a nested interferometer.
You have a large interferometer
within which you have a small interferometer
which Weidman calls nested interferometer.
And the reason why he picked this kind of one third
and two thirds, you're going to see in a minute why.
Something in, because he's going to use a Harunov's.
I see. Okay?
Okay.
So these are the possible trajectories of the, of the photon.
It's a most likely, more likely it will go here in one third of the cases, it
will go to this being splitter and then, and either in this comp a detector or
that con detector.
So you have three detectors, D1, D2, D3, and one of them is going to click.
Okay.
The only point that I'm confused about is
why is there not a D4? Why is there not another photon detector where F is? Ah, okay. If you did
not make any measurement here, the photon always have to go on only to this side. This is the idea
of the Mach-Zehnder interferometer. You send a particle to this diamond shape array of mirrors, it will always emerge continuing
the trajectory, the momentum that it had when it entered. So if it comes from the left, it will
emerge to the right. And if as it comes from the right, it will emerge to the left. So you can see
here the uncertainty relations between position and momentum. As
long as you do not make any measurement to find out whether it went to the right or to
the left, so you don't know the position, then momentum is retained. If you try to outsmart
it.
I see.
Okay? So, by not proposing nested interferometer, a big interferometer, small interferometer, this is an ordinary interferometer.
This interferometer is somewhat different because the first beam splitter splits the wave function to one third here and two thirds here.
So you end up one third here, one third here, one third here.
This is the probability of the particles to be in these places.
Now you pick the cases in which detector did not click.
So you have killed all these parts of the history, right?
You are sure that the photon did not go this way,
but this way.
Then the other detector does not click.
So here is what you're going to get.
This one did not click.
So it went here.
You see the solid line?
This is the solid line.
That's the only possible trajectory possible, right?
Because this one did not click.
This one did not click.
That's the only thing.
So far everything is fine.
Now do what Aharonov tells you and compute it backwards.
You're going to get something really ridiculous. This is a fake future, this is a fake future, this
is the real future. Now run it backwards and you're going to get fake paths.
Okay, you're going to have the particle either returning to here where it did not
come from or here when it did not come from, only in one third of the cases it will go back to where it came from. So you have
here fake futures and fake pasts. I really appreciate your patience because
people will say what on earth is this guy talking about? But now you're going
to be rewarded for your patience because you see that there is a place when the fake future and fake past overlap.
Here you have one going forward, one going backwards.
The place where they overlap, here, you're going to get a real particle.
Not kidding you.
I can show you that although no particle went this way and no particle came back from here,
there's been a real particle here.
We have published a paper in scientific reports with two Japanese experimentalists
who have made the experiment and showed actually with a very delicate kind of measurement
by a test particle that, let me show you, there has been no particle here.
A test particle found this path empty, this path empty, but here it has encountered
a brief, briefly existing particle.
How is that possible?
I know that, and I urge you, don't believe me, read the paper.
The paper is here.
Don't believe me. Read the paper. The paper is here. The experiment has been done and verified the prediction of the TSVS. Now, how is that possible? It's possible and every high school student can understand the algebra.
You began with one particle. You ended up with one particle. But for a while you had two particles. How is that possible?
It is possible because here you had a negative particle.
When you make the algebra, you find for certainty the particle being here when you compute it and
being here. But here it gets a minus sign. What do you do with a minus sign? You have to assign it to something.
Aaronov chose to do that to the mass of the particle.
Now that's very daring.
Remember that when Dirac made his calculation and he got a plus sign, he assigned it to
the charge of the electron.
People said, look, this is ridiculous.
You can't have a positive electron
and he said if this is what mathematics tells me i believe it and he published it and then
five years later anderson has discovered the uh the positron okay sometimes you should trust the
mathematics so in this case it turns out that you got a you got a particle and a negative particle
that you got a particle and a negative particle together,
which means that actually from the very beginning, one particle went here, one particle went here
with its negative twin.
Now it's not an anti-particle, it's a negative particle
because its mass is negative.
So you think that you got here nothing,
but for a while you managed to split them.
Do you remember how in the case of the Hawking radiation So you think that you got here nothing, but for a while you manage to split them.
Do you remember how in the case of the Hawking radiation or in the UNO radiation, you managed
to split from space-time, from the vacuum, real particles, one particle and one another,
one with positive mass and one with negative mass.
This is how the black hole is going to evaporate.
It turns out that this happens also in ordinary wave functions,
that you have mass more than the mass of the particle, but then you have also negative mass
in all these places such that when you make the measurement you get only one particle,
and in all the other cases it kind of annihilates itself. Let me stress that I'm talking about a real experiment. I'll
give you the sources for your readers to look for them for the experiments, for
the details, for the results. Okay, so trust me here that this has
been shown in the laboratory. Do we understand that there is something new
to physics here? Negative mass, something that does not exist in the present particle models, in the standard
model, you don't have negative mass.
You don't have negative mass for simple reasons.
If you do have negative mass macroscopically, you're going to get all kinds of strange results.
Suppose that I have here a block of negative mass and I try to touch it, then rather than being pushed,
it will be pulled.
But then Paul Davis have shown that you're going to get
velocities faster than light.
There are all kinds of paradoxes coming from negative mass.
So there are reasons why negative mass does not exist.
It turns out, however, that for very brief time, the universe allows negative
mass to exist. And that this involvement of negative mass in the evolution and dynamics
of the quantum wave function may explain the very mystery of the quantum.
Super interesting. So a question that occurs is that when you have
a negative value, there are often different places you can place that negative number.
So for instance, with Feynman, you can place the negative on the time or you can place
it on the charge. And that's one of the ways that he says you can think of the positron
as an electron going backward. So were there multiple options for what to put the negative on?
For instance, could you put the negative on the number operator?
So the number operator is usually positive definite.
Could you have said it's a negative particle in a Fox space, even though I don't know what
a negative value in a Fox space would be?
Good question. It looks like the minus is assigned to the presence, to the very presence of the particle.
So it is not that the particle is not there, which is trivial.
It is there in a negative way.
If you follow it, then you come to the conclusion that if you make a measurement, very delicate
measurement, what happens to the mirror that this photon hits?
It will turn out that the mirror is not pushed,
but rather being pulled.
If you make the mirror loose,
and this is an experiment that has been done
by Lev Weidman, this is called weak measurement.
You make the mirror loose and kind of noisy,
and you repeat the experiment many times,
it turns out that in all the cases that you got your post selection, you got the mirror pulled rather than pushed.
How could it be?
Because the particle has impinged on it from the inside.
If the particle has negative mass for a very brief time, this is the result that you're
going to get.
This has also been verified. What I'm arguing is that the TSVF has produced now a plethora of so many surprising results
that actually a new physics is going to emerge from them.
And what Eliyahu Cohen and myself are proposing, and we are now closing a circle.
Lev does not agree with me.
Lev Weidman, whom I cherish and love very much, he says, no, I believe in the many boards. But what we have said, if you want to understand how
a bomb or a detector changes the course of a particle that never hit it, okay, you have
this photon going in the Mach-Zehnder interferometer, the bomb is only here. So it's obvious that
the photon took only that side. So how could there be an interaction between the photon and the bomb? What actually this story tells you is
that the photon went three times through the Mach-Zehnder interferometer. It went on the
right, it went on the left, but it also went negatively on the left. So for a brief time,
there was interaction between the photon and the bomb, but it was undone.
We have a very detailed analysis of that. There is no physics here because here Weidman shows you
how for a very brief time between this particle and nega particle, where you think that there is
nothing, just like in the Hawking radiation or in the UNRWA radiation, you manage to split for a while what you think to be a complete nothingness,
to get a real particle out of nothingness.
This is what happens here.
We call it non-local position changes of the photon rebuild by quantum routers,
and actually there is now a more advanced experiment by Rio, Komoto and Deliao Coin.
If you give your viewers references, I'll send you some references.
I beg all your viewers and you don't believe anything I say.
Read the papers. There are theoretical papers papers, the experimental papers, read them.
So the links to all of what's been mentioned in this podcast
will be in the description.
So two questions occurred to me.
Yeah, go ahead.
You said that this reproduces quantum mechanics.
So what would be the standard account?
What would be the standard reason that this occurs standard reason that this occurs very good question.
Very good question i asked how can you explain that gave an explanation in terms of the many walls there is a universe in which for a while there is a particle but this is no more universe you better ask him i would love to see and i.
You better ask him.
I would love to see, and I challenged both, uh, uh, John Kramer and, um,
uh, there is another, a Ruth Kastner.
And I said, I would love to see an analysis, uh, according to the transactional interpretation of this result.
I would love to see, you know, by all other Copenhagen, all interpretations
like von Neumann involving human consciousness, whatever. I'd love to see the analysis of
that. I find that actually the two-state vector formalism is a formalism that does not invoke any, you know, the guide wave or entities that you can never prove.
It tells you that if you allow in four dimensions things to go back and forth,
such that mass can sometimes become negative, then you get a very interesting, very intuitive explanation, plus, and that's the
most important thing, plus new results. So we ask a very good question, because in retrospect,
quantum formalism must confirm that. Now I'm going to ask, how come that none of the other
theorists from many worlds, from hidden variables,
the Bohmian mechanics and so on.
How come that none of these interpretations have come with this prediction?
It tells you that ontologically,
the TSVF is closer to the truth in some very deep ontological sense.
Let me say the following.
Once we have a new
theory, which will come instead of quantum mechanics, once we have the long software
revolution of quantum mechanics and relativity, that will be an ingredient of that future theory
that we don't know yet about. The things go on both sides, on both directions, a long time.
This is super interesting.
Now is this yet at a rigorous stage?
So there are speculative parts of this talk and there are rigorous parts of this talk.
This is rigorous.
This has been published in Nature Scientific Reports, and then there is a consecutive paper,
which is experimental, beautiful results,
and they just show what we claim.
That you have a path where no particle went to,
and no particle came back for,
but for a very brief time it has existed there.
And that comes out of understanding
that in that wave function, which has been split into three,
there has been a negative part in which mass itself was negative.
That, with all modesty, I would beg people of the standard model, why don't you think about
this possibility that mass sometimes can be negative? If this is brought to your symmetry groups and so on, that may
give you new hints for the theory that you're looking for.
Okay, that's in many ways an explosive presentation so far. So explosive not
only because of the analogies that we've made. So mine was dynamite and then you
had a bomb and then a cannonball, but also in terms of
results.
So let's see, let's see where else this goes.
Take me on the rest of this journey.
Very good.
So now I'm leaving quantum mechanics.
When we want a theory, a unified theory, we want to think about relativity.
So I'm going back to the basics of relativity, quantum mechanics. Let's put it aside and I'm going to ask a question about relativity.
You remember that in special relativity, the velocity of light is invariant, which you know
for a new, for a freshman, a fresh person in physics, This is really surprising I am measuring the speed of light and I get the speed which is C
Then I travel very fast towards the source such that now I should get a much higher velocity
And it's just the same then I run away from it almost at the speed of flight
So it must be much slower and I still get the the velocity of flight
So there is something very counter-intuitive here.
Galileo has shown to us that all motions are relative.
Einstein agrees with him with the one exception.
The velocity of light, it doesn't matter
whether you travel fast or slow to one direction,
to the other direction, contrary to the direction
of the light, the same direction, contrary to the direction of the light, the same direction, you will
always get the same figure 300,000 kilometers per second.
And that's really strange.
Now the question I'm going to ask is the kind of, you know, high school
student pupils question.
What makes light so unique, so special that this is the only velocity which is completely
invariant?
Here is what not.
Some people will say we see only with light.
But I mean, relativity theory is not a theory about human beings, about their eyes, about
their senses.
In other words, has there been an Einstein bet and he would try to base
his physics on the, um, the, on the assumption that the velocity of sound
is invariant, he would utterly fail.
Do we agree with that?
Right.
So what makes light so special?
Uh, you know, Einstein at the young Einstein was a positivist.
And he may give you the answer that we see it for light,
but the old Einstein who was not a positivist
and he was looking for a deeper understanding,
he never said that, but I take the liberty of talking on his behalf.
The same velocity invariance holds also for gravity waves.
Okay? We for gravity waves.
We have gravity waves.
They travel at the same velocity.
Nobody thought about doing this experiment because it's very hard to measure gravity waves.
But suppose somebody measures the velocity of gravity wave by moving very fast,
close to the velocity of light, towards the source
of the gravitational wave. You will get the same number, 300,000 kilometers per second. Do you
agree with me? Correct. And vice versa if you run away from it. So this invariance holds not only
for the velocity of light, but also for the velocity of gravity waves, not only for the velocity of light but also for the velocity of gravity waves.
Not only for electromagnetic waves but also for gravity waves.
That makes relativity much easier to understand what is invariant is for the causal connections.
Photons bring about causal connections. When you use a ruler, when you use the table, I don't get into the chair.
I don't get into the table.
There is a mechanical interaction because they exchange photons between them.
Do we agree about that?
Right.
So photons are the carriers of interactions between the objects here.
Gravitons, gravity waves are the carriers of interactions between galaxies and planets.
So what is common to the two waves, the electromagnetic and the gravitational, is that they are the
agents for causal relations.
It is photons which maintain the length of the ruler.
It is photons that actually keep the clock, the mechanism moving, being exchanged
by them.
So that's the reason why the velocity of light is so unique.
It is the interaction.
It is the velocity of interactions between bodies.
I know very little about the strong force or the weak force because they hold only for
very strong distances, so we can leave them aside but that is important for what i'm going to say later.
What's the game i propose the assumption of becoming i say let's combine the activity theory although.
It's a it's a it does not follow forcibly.
It's just an assumption that events are created in you one after another in space
time, according to their causal order, any, at any moment time, there is a time
which is perceived as now future events are not only unknown, but objectively
inexistent and they will be created.
Coming back to your dishwasher, whatever you and your wife going to do with it.
This is something that is going to emerge.
It's not already there.
I I'm sure that your wife would agree with me.
You can, you can.
So this moment of now, is this a moment that is shared across people?
Is it local?
Is it within some open patch or is it just at a point there's a now?
That is for every observer they have a different now.
Good question.
You know, Hermann Weyl, he grappled with this problem and he proposed that the world is
a blocked universe and we are world lines from birth to death. But there
is something called consciousness and it crawls up the world line. He was a genius mathematician
so he believed in relativity theory and in the blocked universe, but he said perhaps
there is something which is outside of physics, something as you said about this day of fire going for the dynamite so the dynamite a rope okay so.
Why believe that there is something called consciousness going going up there crawling up what's why nobody understands no pan rose once jokin said when i'm talking to you.
Is it possible that my now is already ahead and you're just talking to a zombie
or your consciousness is, I mean, is the crawling of our consciousness simultaneous or is it
relative? Good question. I'm going to say something about it. But I suppose that there is indeed some kind of now moving forward.
Objectively, what kind of physics is going to emerge from it? I'm going to use mass,
mass principle. You know, Mach, he gave Einstein the impetus to produce special and especially
general relativity.
And he said there is no meaning to time or to space if there are no events.
We can't talk about empty space just being absolute.
There are events in it and the distance or time intervals between events.
This defines distances, spacelessness or time intervals.
Now I derive from this principle the following claim.
If I believe that future events objectively do not exist,
whatever you do with your dishwasher,
whatever I'm going to do tomorrow with my cat and my car and whatever,
my daughter, whatever,
these events are not there.
That means that space and time do not exist beyond the now.
Now I think that this is interesting.
If there are no events, then there is a limit to space and time.
They don't exist beyond the now.
Now why do I feel that there is a cosmological ring to this? I mean, the whole universe, the four dimensions have emerged.
They're expanding. So when I say that the now is moving forward, actually I'm saying
that there is an expansion of the universe, not only in three dimensions, but this is
also the expansion in time. There is more and more time, just as there is more and more space to the universe as it expands or even inflates.
There is more and more time to the universe as the now moving forward.
So actually it is space-time which is being created by the now.
There is more and more space-time out of nothingness. When a student asks you what is outside of the universe, you say it's meaningless.
It's an interesting question, but it's meaningless in terms of present-day physics because this is space-time.
When you say out of, you're already assuming space.
So it's meaningless. It's the universe. That's the whole story. Nothing beyond that. Once again.
So the future is, is the nowhere is the no when there is nothing there, not even space
time.
And actually as the universe is expanding, just I'm following the big bang.
It is also expanding in time.
So I think that I can avoid the threat of infinite times if I show that I'm not assuming
a higher time parameter when I talk about this creation.
Look, it's similar.
People ask you what happened before the Big Bang.
So it's not a silly question.
It's a very profound question.
We just say time was created at the Big bang. So it's present. We can answer that, but we do understand that space and time are being created.
And when you, now you understand that the assumption of becoming is
very natural within that actually the big bang is occurring even now.
I mean, at any moment there is a new layer to the universe.
It is, as it expands, it also grows in time.
That may have interesting consequences.
So let me just see if I can recapitulate this point.
So if you look at a Penrose diagram, which I'll show on screen,
what people see when they think about the Big Bang is at the bottom,
and then there are some photons that come out, and then it's at this squiggly point that you wonder, okay,
well what happened before?
And then physicists like to say there was no before, you're making reference to a time
and you're making reference to a space and so on.
And then eventually physicists start to accept that and maybe even the people who ask the
physicists start to accept that.
What you're saying is that physicists also like to think of the future as infinitely
extending into the future, but you could also think of what is now as equivalent or analogous
to how the Big Bang gives rise to moments.
Is that correct or no?
You told me what I think.
I didn't know that I think that this is what I think, but it turns out that this is what
I think.
Thank you for telling me.
That's another way to put it.
I never thought about it.
So let me think about it.
Thank you. Yeah. I
think that that's, that's a very good way to put it. Now, of course we have here a philosophical
problem or a logical problem because Kant told us that time and space are necessary
forms of any thought. And also for any PowerPoint slide, okay?
When I am trying to show this nothingness, how can I show it?
I still need some to put on my slide some kind of space, although it's not there.
That's actually extremely clever.
I like that.
Does that get laughs at conferences?
If they're good, because if they laugh, they give you a funny look and say, for
God's sake, when, when is this talk going to finish?
But, you know, Kurt, uh, much of the material that I'm showing here is thanks
to you is new during the two weeks.
We, we tried to have this talk and then there was a technical problem and you
said, let's reconvene.
What do you know?
Because of that, I said next time, I better prepare my talk and then my thoughts began
running so much of what I'm showing you.
So I'm thankful to you and next time I go to a conference or I write a paper, I'll have
to give credits to this podcast.
Wonderful.
So I just had a podcast with someone named Manolis Kellis, and he was saying
that often mistakes-
Oh, the biologist.
Right, you're right.
Oh, that guy is amazing.
Yeah.
I'd love to talk.
I have some thoughts about biology too, if you're interested one day talking about life.
I can arrange a talk between you and him at the same time on the channel.
Wow, that would be great.
Okay.
And so anyhow, he said, mistakes in conversations can precipitate new ideas.
How?
Because I gave the analogy, but he was suggesting this, but the analogy is that if you're having
a conversation where everyone's interpreting each other correctly,
it's as if you're playing badminton with one another or tennis. And that's great.
But if the other person misinterprets the other person, it's as if you didn't knock the ball back
to them, you knocked it off to the side, and now you have to go and find the ball, and now you've
explored a new part of the town or the city that you wouldn't have gotten to had you done everything correctly initially.
So with us, had there been no Riverside issues or zoom issues or online technical issues
or microphone issues or what have you, these ideas may not exist.
So it's pretty cool.
Yeah, you can direct Professor Manolis to my girl months book, the Jaguar and the Quark, he says an interesting thing that once while
giving a talk, he made a slip and he said another word rather than that one.
People giggled and they corrected him.
Later it turned out that he had a new idea.
So it was there in his unconscious and went through one of the slips of tongue. And, and professor Manolis knows he will, he probably, uh, he will say
that this is how evolution progresses.
There are mutations, most of which are lethal, but very few of them turn
out to be ingenious, um, for what comes next.
So yeah, this is what happened to me.
All right.
Let's get to the rest of the slides. Yeah. So here is the naive view of the block universe
I'm showing here say an annihilation between a particle and anti particle
So it's the blue purple whatever and the red and then they give rise to a photon and the photon hits another electron
And and and it scatters off. Okay, that's the naive view past present future. They're all together
now if I want to make a becoming of that, I should say that there is nothingness. The
universe does not exist. This is the black thing and it's slowly or quickly unfolds.
And then we get such that the world lines are being drawn as the universe expands.
That's kind of naive becoming.
Now go to your question.
Is it universal?
So first of all, now I'm going to come full circle with quantum mechanics.
And you say always, look, this quantum mechanics is really strange.
I have a wave function going in all places,
and I know that it's real in many experiments,
like the bomb testing experiment and so on.
You know that the particle can be in many places,
like a wave, but then when you make a detection,
it's only in one place.
It's only in one place,
but it did not go all the way to that place.
There was a collapse of the wave function.
It resided in many places, and the moment it was measured, it was there.
That is really strange.
What I'm proposing is that it is strange because you think that there is a pre-existing space
and time into which this wave function goes and then gives rise to this collapse and to
many places which are empty.
Okay.
The photon is not here or the particle is not here, not here. So you have an empty space.
It is only in one of the possible spaces.
All the rest give you empty space.
And here's my suggestion.
Is it possible that the empty space is also created by the space time?
I know it sounds crazy and you may regret for calling me to your podcast.
I'm proposing once again the following. You send a particle to what you think is a vacuum,
okay, there is nothing there, and then you have a wave function going to the vacuum and
then you make measurements and you find it only in one place. All the other places are
empty. So there is nothing there. There is space and time. Is it possible
that the wave function actually creates not only the particle, but also the space-time
surrounding it? So collapse gives rise not only to the particle in empty space where it could have been.
And then, so here it is.
Here you have particles.
They interact with one another.
Sorry for this silly thing.
No, that's cool. In that nothingness.
And then we have particles and the space time around them.
And once again, they interact in the nothingness and then you have space-time around them.
So what I'm proposing is that the quantum interaction precedes space-time.
Space-time emerges from the interaction, whether these are photons or gravitons or perhaps even
the real particles.
I'm not completely sure about that. I say that electromagnetic waves and gravity waves
shape our universe.
They shape our rulers.
They shape our clocks by exchanging photons between them
because this is electromagnetic.
And when you are talking about the universe,
there are gravitational forces between them.
Is it possible that what creates the empty space,
it just these gravitons and photons,
their wave functions that actually interact with one another
in the nothingness?
You know, when I talk about nothingness,
you see this black part.
It is similar to the nothingness outside of the universe.
You can't go out of the universe
because the universe is space time. We are bounded by this nothingness outside of the universe. You can't go out of the universe because the universe is space time.
We are bounded by this nothingness.
Right.
And I guess that this is, this is how I would propose that space time is
emergent and so on now.
So this is the speed of causal connections.
I now no longer, I'm not surprised that the velocity of light is always the same,
no matter how I travel, because when I travel my world line and all the force
carrying particles, whether photons or gravitons interact with the environment.
So they create the space time between them.
Now I am not surprised that when I measure the velocity of this
force carrying particles, it is invariant.
And now I think that you're going to, we are going to get the great reward.
So mass gives right, not only to space time curvature, but also to
the bumps in the plane.
So you ask whether this now is always the same.
Frankly, I don't know.
I would guess that every time that there is a mess, then somehow this time alternative
will change and time is moving differently in that place.
This is not shredding your scat, but... And now something interesting.
Think about the EPR experiment or shredding your scat. I think that now you have a good explanation to them when you say, and this goes to your question about whether time is simultaneous or not.
When the time moves, you see that it leaves some corridors which are not filled yet.
And these are the two corridors of the two particles.
As long as you did not measure them, there is no space time there.
The moment you measure them,
then evolution, the now goes and fills the gap
that you have left in this corridor.
I look at the shredding cat
and a student many years ago asked me a question
and she was very, it was a very bright question.
She said, why are you physically so much bothered about trading your scat?
You want to know whether it was superposed or not when the box was closed.
I can show you that he was not in a superposition because all you have to do is to
make the experiment longer, say three days and then open the box after three days.
So the little event which occurs or does not occur has to occur at the
beginning and then you wait for three days, right in the box, then you're
not going to find only a live cat or a dead cat, you're going to find a live
cat, but very lean, just like this cat, uh, very lean and angry and all
droppings and so on, or you are going to find a dead cat, but already decomposed.
Right.
So she said, why are you bothered about that?
Do you agree that this is a very profound question?
And my answer is that as long you see this rectangle on the left, as long as
the box was sealed from the rest of the universe. There was no space time though.
The, the cat being superposed means that its evolution has stopped.
Now, when you open the box, becoming goes back and fills it.
So actually you're creating back, you're creating back the whole
history of the cat when you're opening.
When you're opening the box, you are not only determining
the cat's state, but you are determining its entire history.
This is very similar to John Wheeler's delayed choice experiment, in which you have a photon
coming from millions of years ago, and then now by making an interference experiment or just
measuring its position, you are actually choosing the kind of history that you have.
I'll be happy to talk about Willow's delay choice experiment another time.
But actually the idea of becoming actually tells you that many of the
quantum mechanical problems can be better understood in this way.
And here before I finish, I come to the most, yeah, and then the origins of time asymmetry, all the asymmetries, you know, there are important books by Davis and others, the physics of time asymmetry, what is the master asymmetry.
So I would say that it is becoming. But now how about, and with this, I come to the conclusion.
If two particles, what I propose here is the two particles interact with one
another in the nothingness outside of the universe in a way that I don't
know how to describe it's beyond.
We, you need very strong mathematical tools and cosmologists may have it when they talk
about the origin of the universe kind of pre-state in which the universe exists
or how universes are born from one another.
I'll talk about it later.
But if you say that the quantum mechanical interaction is.
A curse beyond the now in the next moment
where there is nothing there is no time no space and then space and time merge
by this interaction
quote you're going to get their relative positions which means that you're going
to get attraction repulsion they come very easily for this.
They don't have a position yet, they don't have a momentum yet.
It's only they interact in a very mysterious way outside of space-time.
And then there is a collapse and then the whole space-time is there.
Do you understand that you can get gravitational attraction or electromagnetic attraction and
also repulsion coming naturally and smoothly from these dynamics?
It's not entirely clear to me.
You have broad lines. You have broad lines.
You have broad lines.
And according to relativity theory, the naive relativity theory, the world lines are just there.
Fast present future.
Now we are proposing that there is a now which draws the world lines.
Okay.
And I suggested that they interact with one another quantum mechanically in, you see the
black realm is where this is the now.
And I suggest, and out of it, it's just like out of the universe.
I mean, the future is just like out of the universe.
No events, but there is no space time.
Space time is being created.
It's growing.
Now, when I suggest that the wave function creates not only the
particle, but the space surrounding it.
Remember that in general relativity, actually there is an interplay between
mass and the space time surrounding it.
Here I'm proposing similar thing in quantum mechanics.
There is a particle and it gives you a wave function.
And as long as you did not make a measurement, it may be in many places.
Then you find where the particle is and all the other places are empty.
I suggest that the collapse of the wave function or whatever it is,
gives rise not only to the particle, but to all the space where it could have been there.
So the empty space is also a product of the wave function.
Now, if a particle creates the space and time around it, do you understand
that attraction and propulsion now, the relative positions of particles or bodies.
Planet.
Can be better understood in this way that space time is being curved but space the curvature of space time is due to interactions which are outside of space time.
space time, they are first quantum mechanical.
And then when there is kind of measurement or collapse, and then there is becoming,
then you have the body, whether it's a charge or mass, and it has a new relative position to the other body, to the other charge or mass, because they have
created the space time around them.
Okay.
I see what you're saying.
So are you saying that the filling in of space, either if it's filling it in between two particles, that's repulsion, if it's filling it in outside of the two particles, it's pushing them together?
Yes.
Okay. The trouble with that would be that if you were to see two particles being repelled, shouldn't you see every other particle that was between them also being
repelled?
Why should I?
Because space would be growing between them or you could also see them attracting?
You have a good question.
I mean in vacuum there is no problem.
I would argue there's been exchange between them and they created.
Now you may ask me if I do it in the laboratory.
Good question, Kurt.
Thank you.
Yeah.
You know, that may show that my whole model is wrong, but let me think about it. I'm doing it here in my room.
So I have a child, I look from here, I look from here and they will tell one another,
but there has been error here too.
And there are tables and cat and, and this cat and so, so it's not in vacuum.
No, um, actually I, I would, I will have to think about all those particles of
error and the furniture and this guy, they're also evolving, so they are, they
are also evolving together and they are also evolving. So they are also evolving together and they are also interacting.
So that's very complicated.
I agree.
That actually can give you, we are asking, we don't have the resolution for the measurement problem.
Okay. Can a particle be in a superposition?
Yes. I made money off it.
This is the elite environment bomb testing experiment. Can a cat be super
posed? No, I don't know how to do that. But if you manage to
put this guy in a box where it is completely isolated from the
universe, you can do it on Earth, but stay in outer space.
And of course, you don't want to make an experiment that will kill
it, but just tickle it.
Oh can you get a cat being superposed? I mean it's macroscopic you have to go to outer space and then it will be superposed. To your question about repulsion of two charges here in the room where
it is filled with air, my answer and thank you asking me, is that all other molecules, all other
particles take part in this story.
They all send either photons or gravitons, actually both, everything sends
gravitons, even if you are a single electron.
So they are sending gravitons, photons and other force carrying particles, let's not go into the nucleus.
And then it is these interactions between them by these force carrying particles, bosons,
which create the space around them.
So if you do it here in the room, it's going to be very dense, very crowded.
But the same thing happened. You just have many, many more partners to this.
I need to think about this some more.
This is extremely interesting.
Me too.
Me too.
So I'll let, let me just end and say, yeah, and then we can have a free talk.
Uh, what I'm suggesting is that, you know, and, and it's a kind of research project.
I say to cosmologists, and this is something that I could not understand.
So the wave function upon measurement gives rise not only to the particle's position and momentum,
but to the entire space-time region in which it could have resided.
So the pre-space-time interaction determines the distance between objects.
This is how you get attraction and propulsion.
And there was such a program would be to ask cosmologists.
And this is something in which I'm fairly ignorant about their scenarios of pre pre Big Bang.
What happened before the Big Bang?
Because for many years, this has been considered to
be a non-question that you can't ask.
But nowadays cosmologists do ask it.
They talk about how the universe emerging from one another, evolving from one another.
So there must be some more fundamental reality within which Big Bang and universes are born
and perhaps die and so on.
I think all i'm proposing here.
And once again i'm thankful to you to make me realize that this is what i'm proposing whatever you think happening before the big bang.
It just happening in the next moment which is not exist so we are always facing this kind of out of space time that was before the big bang.
And then there are interactions, quantum mechanical and so on, between force carrying particles and there is a new layer of now.
And it's very likely, surely it's not straight, but gravity and other things or the corridors that I've shown are in at the very low scale.
Still keep such that the becoming sometimes go back and forth to these zigzags, but very likely when you want to understand what gravity is doing there, we know that clocks tick more slowly in gravitational, where gravity is high. Very
likely you have this line of now being somewhat having these bumps according to the presence
of mass and very likely also to charge us in a way that we don't understand. What I'm
proposing is we would love to see, so here it is.
General relativity did something wonderful.
It showed that gravitational attraction is just, you know, the bodies are following Newton's rule.
They are going in straight, they are going in straight line.
It is only the mass, it is only space time which is being curved around the mass. So you have this beautiful
interplay between space-time and mass. Space-time tells mass where to go, mass tells space-time how
to curve. We would love to have the same account with colonic forces, attraction, repulsion,
magnetic, electric, and we don't have them i don't know that you got gonna have them very within very few years and so far he failed.
I know that it's very bold very ambitious and even arrogant and impotent of me to suggest.
impotent of me to suggest, but it's about time to do that.
Think about becoming with all the respect to models of many, many spatial dimensions, which are compactified and so on, take becoming as your starting point.
And then think about this one as giving rise to attractions and repulsions.
And I believe I gave you reasons to think that actually these are the
kind of forces, electromagnetic and gravitational, which they perhaps
precede space time, they are more basic than space time and space
time is created by them.
are more basic than space-time and space-time is created by them. That offers a new way to look for a unified theory.
Professor, that was wonderful.
Thank you. I wanted to say something about compactification. Some cosmologists say, string theory said that many of the
dimensions are compactified and they became compactified after the Big Bang. Perhaps every
such creation of space-time leads to this compactification and wave function collapse.
time leads to this compactification and wave function collapse. And let me finish with this.
You know, you asked me about Minkowski and the controversy that he had with Einstein.
I don't think that there was a controversy.
It's interesting to know what were the personal relations between them.
Perhaps we may find one day a new letter or no email, but something like that. But you know that Minkowski died very young from diabetes, from appendicitis,
which is terrible.
How did humanity lose such a huge genius of this simple condition?
And you know what he said?
He knew that he was going to die.
And his people's, it is quoted, his quarter, the saying, what a pity to die at the dawn of relativity.
So, you know, the dawn of relativity is over and now relativity is up there in the sky.
But there is a new dawn always.
And let me wish you and your dear wife and everybody that it will be always a pity to die and that there will always be a new dawn waiting for us.
Well professor I have a variety of questions for you some technical some about what advice you have for students so.
So, how about we save the technical questions for next time and if you're watching and you want to ask the professor some questions, you leave them in the comments because there'll
certainly be a part two.
There may even be a part three with Manolis himself, maybe you with another physicist,
we'll see.
But either way, please end this with your advice to the young physicists and the young
mathematicians, people who are entering the field,
and then also people who are currently researchers, as that comprises the bulk of the theories of everything audience.
Yeah, some of my advice is, some people will tell you that they are not good advice, but this is what I did.
First of all, don't worry about your salary.
People will tell you why do you do that? You better go to study AI, solid state,
quantum computation and so on because in high tech you're going to get much better salaries.
If you go to study foundations of physics, uh, you have to be very good.
And there are few positions and still my advice is don't worry about it.
If you really love physics, if you really love theoretical physics, if you love
the foundational questions, be ready to put up with a somewhat lower salary
with a somewhat lower progress in your career.
But the gains are there and it's worth gambling.
If you're good, don't worry.
Even if you have an idea, if you have an hypothesis and it is not proved, don't
worry if you're good, if you're smart, if you love physics, if you love science,
you will find interesting things.
Columbus never knew that he is discovering America.
He thought that he found India, but he was just looking.
And when you are adventurous, you will find things.
So don't worry about that.
Don't worry.
Don't be afraid of asking simple questions.
We have a problem with the tenure track in all universities.
You finished your PhD and then your postdoc and then they give you what four or five years. You
have to produce a certain number of papers that people measure them by the impact factor and so on
in order to give you tenure or not. Very often people do not dare to ask fundamental questions during this time,
because they have to produce papers.
I wish I knew what to propose to you.
You should survive in the system, publish,
but never lose touch of those profound questions.
And another thing, make groups, study groups, young people, boys and girls, young students.
If you love a certain science, history shows that whenever you make a group of people saying,
let's meet every Wednesday, let's go to a certain cafe, you read this paper, I'll bring
this book, let's read them together, let's go to a certain cafe, you read this paper, I'll bring this book,
let's read them together, let's think. If you have a theory, just we shall be your peers and so on.
Nowadays, it is easier to do it with Zoom. It's very good to have dialogue, especially with people
with a few age, young people together can be without fearing the authority of the professor and every once in a while going to consult a senior scientist.
But do fertilize one another. I find this extremely important for the development of scientists.
I agree about studying and thinking in a group. So for myself, that's something that I wish I had done. When I was an undergrad, even now, I'm a lone wolf and virtually
every single thing I've learned in physics and math and philosophy I've
learned on my own. I didn't even go to lectures. I just would study on my own.
And it's painful and slow. And recently, well there's some problem that was
bugging me for months. And then I
went to film with Manolis as we've mentioned in this podcast at MIT. There was a student
there, I told him my question, and then he just started answering it. Then I was like,
okay, I understand now. And that just took a few minutes. Whereas if it was just me,
I would be toiling over the course of days, not in a row, but intermittently over the course of days and weeks.
I mean, I had this problem in the back of my mind for months, like I said.
But anyhow, that's something that I wish I had done.
Friendships are very important in science.
And the good relations of friendship and love between people who are going together, it's
always a very good fuel for the intellect
that you're doing in such an atmosphere, very stimulating.
And nowadays with Zoom, it should be even easier.
Professor, I'm grateful that we've established
this friendship and I hope to continue it.
I look forward to speaking with you again.
Thank you very much, Kurt. Looking forward to it.
Great meeting you.
So talk to you soon.
And once again, thank you
because there's gonna be a paper soon.
You know, I'll have to think about it and I'll deliver it.
First in a conference, I'll look for an opportunity
and then a paper.
So in all of them, I'll make sure of, uh, just, you know, pointing out
that it wouldn't come out.
And this is what I say to our viewers, make friendships, make contacts,
interactions, because this is how, um, I done actually one of his ideas for
the general theory of relativity was that he wrote an encyclopedia and
for you and then he had an idea.
So we were lucky to have this.
Take care, sir.
Okay. And it's about time you call me off.
Okay.
Aufscholang. Thank you.
Namaste.
New update. Started a sub stack. Writings on there are currently about language and ill-defined
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not on theories of everything. It's not on Patreon. Also, full transcripts will be placed
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physics, philosophy, and consciousness. What are your thoughts? While I remain impartial in interviews, this sub-stack is a way to peer into my present
deliberations on these topics.
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