Theories of Everything with Curt Jaimungal - The Consciousness Iceberg: CTMU, Hofstadter, Penrose, CEMI, McGilchrist [Layer 4]
Episode Date: November 22, 2024Explore the deepest mysteries of consciousness in Layer 4 of the Consciousness Iceberg: Strange loops, quantum theories, CTMU, and more. Dive into the paradox of self and the mind's hidden dimensions.... 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 New Substack! Follow my personal writings and EARLY ACCESS episodes here: https://curtjaimungal.substack.com TOE'S TOP LINKS: - 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 - Support TOE on Patreon: https://patreon.com/curtjaimungal (early access to ad-free audio episodes!) - 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 #consciousness #mind #theory Learn more about your ad choices. Visit megaphone.fm/adchoices
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Welcome to the Consciousness Iceberg, Layer 4.
In Layer 1, we explored foundational concepts
such as what is consciousness, what's the mind-body problem, and the nature of
dreams, identity, as well as free will. In Layer 2, that took us through tackling
the hard problem of consciousness, theories like global workspace, and even
delving into various forms of Indian non-dualism. In layer three, we then twisted the proverbial knife with Heidegger,
ideas of Heidegger and the attention schema theory,
and even modern theories and thoughts from minds like
Joschabach and Donald Hoffman among others.
And now as we enter layer four,
we find ourselves at the precipice of some of the most ambitious theories yet.
In this layer, we'll explore Douglas Hofstadter's strange loops,
as well as the paradox of self-reference.
We'll also explore Penrose's quantum theory of consciousness.
We'll also explore Christopher Langan's challenging CTMU.
And we'll touch on John Joe McFadden's electromagnetic field theory of consciousness,
as well as David Chalmers' extended mind hypothesis,
oh, and Ian McGillchrist's
relational dual aspect monism.
My name is Kurt Jaimungal, and on this channel, I research mathematical physics and philosophy
in front of you in podcast form, bridging these disparate subjects, making abstract
concepts digestible and relatable without sacrificing the rigor.
Let's begin our journey into layer four of the consciousness iceberg.
Douglas Hofstadter's strange loops
is a concept he meticulously explores
in his Pulitzer Prize winning book
Girdle Escher Bach.
Strange loops is a framework
for understanding the emergence of
self-awareness and consciousness from how the brain models the world and itself. The core idea is
that consciousness comes from self-referential feedback loops within
the brain, where a system becomes aware of itself by representing itself within
its own model of the world. Okay, you'll hear the term self far too many times to
count throughout this entire iceberg, so expect some jamais-vous.
Imagine a video camera pointed at a TV screen displaying its own output. What happens? Well,
you get an infinite regress of images within images, each of them nested within the other
one, creating a visual representation of self-reference.
Hofstadter argues that a similar process occurs in the brain
where symbols and representations,
initially referring to objects that are external
and also events that are external,
begin to refer back to the system itself,
creating a loop.
So this is what he calls a strange loop.
He proposes that this strange loop is the key to self-awareness
and the emergence of an I, a quote-unquote I. Because of this, this is more of an explanation
to me at least of self-consciousness rather than consciousness itself.
Now that Gödel in the Gödel-Escher Bach refers to Kurt Gödel, not Kurt Jaimungel, the other actually cool Kurt, who
demonstrated that a formal system of sufficient complexity—you have to put an asterisk there
because there's some formalities to that—can contain self-referential statements that are
both true and unprovable within the system itself.
These quote-unquote Gödel sentences demonstrate the inherent limitations of formal systems
and, according to Hofstadter, give some clue to the nature of consciousness.
How so?
Because the network of interconnected neurons and its ability to process information in
a hierarchical and recursive manner is seen by Hofstadter as a formal system capable of
generating girdle-like sentences.
These are those self-referential statements that point back to the system itself, creating
a loop that gives rise to self-awareness.
Okay, quite complicated, so let's say, how does Hofstetter's idea compare to some of
the others that we've encountered in this iceberg?
Well, the Buddhist view of consciousness would say that the self is an illusion, at least
according to some schools, and that may seem to contradict Hofstadter's strange loop,
which suggests that there is a real, albeit emergent self.
While a strange loop could be seen as a process that creates the quote-unquote illusion of
the stable self, rather than a real and unchanging entity, this interpretation, the Hofstadter
one, still posits an emergent self,
which is at odds with the Buddhist view of anatta, or no-self.
How about how it compares to global workspace theory?
Well, that theory suggests consciousness comes about when information is broadcast widely
to a global workspace in the brain.
This global workspace, by providing access to information from various brain regions,
could be seen as a necessary condition for a strange loop to form.
This means that while global workspace theory doesn't entail the strange loop, it may give
the neurological grounding for the loop to occur.
Panpsychism, on the other hand, which is that view that consciousness is a fundamental and
ubiquitous feature of the physical world, could be seen as both compatible and contradictory to Hofstadter's strange loops.
On the other hand, if consciousness comes from fundamental properties of matter,
then the self-referential loops in the brain could be seen as a particular manifestation of this
fundamental consciousness. How about how it relates to John Ravacki's theory of relevance
realization, the one that emphasizes the mind's constant process of determining
what's important in any given situation? A strange loop could be seen as a high
level relevance realization where the system itself becomes relevant to its
own model of the world. The system by representing itself within its own model
recognizes its own existence and agency. Now this is merely speculation on my
part. Then there's a eliminative materialism. Try saying that five times
fast. That's the view that our common sense understanding of the mind is
fundamentally flawed and that consciousness is an illusion that people
like Daniel Dennett state, or at least stated.
Daniel would have argued that there's no Cartesian theater in the brain,
there's no central place where consciousness resides, and instead
Daniel Dennett may see consciousness as a product of distributed brain processes without any need for self-referential loops.
Now one of the main criticisms of Hofstadter's theory is,
how the heck do you test this?
Strange loops are more of a conceptual framework
than a testable hypothesis.
Another criticism is that Douglas Hofstadter's theory
doesn't fully address the qualitative aspects
of consciousness, what philosophers call qualia.
While strange loops might explain
how a system becomes self-aware, they don't
explain why this self-awareness is accompanied by subjective experience.
Roger Penrose's Orchestrated Objective Reduction
Roger Penrose, the mathematical physicist and Nobel laureate, argues in his book The
Emperor's New Mind that consciousness comes from quantum
processes.
But where specifically, and how specifically?
Well, some of that came about later when Stuart Hameroff entered the picture.
Stuart says it's within microtubules, of course.
Now these are tiny structures inside cells and neurons in particular.
Penrose pauses that these quantum computations are responsible for the non-computable
aspects of conscious experience. Remember Gödel that I just talked about. To Penrose,
Gödel showed that there's something non-computational, non-formal going on with our
mind's ability to understand. It's this ability to understand in particular. This is roughly because we can understand or we can see that the girdle sentence is
true, even though the formal system itself can't prove it.
Okay, so back to microtubules.
Microtubules are the cylindrical polymers of the protein tubulin.
Even though they're pretty much found in all cells, they're particularly abundant in neurons.
But what do they do?
They play a role in maintaining the cell structure, transporting molecules, and regulating cell division.
Okay, so what's the big deal?
Well, Penrose and Hamerov suggest that the tubulin molecules within these microtubules can exist in a superposition of states.
So many people talk about microtubules, exist in a superposition of states.
So many people talk about microtubules, but actually they should be talking about tubulin.
Now this superposition is a hallmark of quantum mechanics.
These superpositions can be sustained.
But for how long?
Well it has to be sufficiently long enough for there to be some meaningful quantum computation.
Penrose proposes that when these quantum superpositions in
the tubulin reach a certain threshold determined by gravitational effects, a non-computable
process called orchestrated objective reduction occurs. He suggested that these events are
moments of conscious experience providing a bridge between the quantum process and consciousness.
The orchestrated part of orchestrated objective reduction just means that the quantum computations
are orchestrated by the brain's electrical activity, or activity in general.
But what does this orchestration quote unquote do?
It acts to synchronize the activity of microtubules across different neurons.
Penrose and Hamerov argue that this synchronized activity gives rise to a unified conscious experience. Now Roger Penrose
doesn't explicitly endorse panpsychism but his theory can be seen as compatible
with it. How so? If consciousness arises or comes about from quantum processes
and these quantum processes are somehow fundamental to the universe, then it could
be that consciousness is a fundamental feature of reality that is present in some form in all matter.
This aligns with the panpsychist view that consciousness is not limited to brains,
but instead is a property of the universe itself. Now the reason I say that it could be seen as
compatible, but not that it is compatible,
is because for Penrose, consciousness isn't a feature of the universe that's just present
within any given subatomic particle, but rather, it's the collapse of particles that produce
consciousness.
And that's decidedly different.
Thus, in some sense, it's a physicalist or materialist theory of consciousness. In
fact, I spoke to Roger Penrose about this in particular, and you can click in the description
for that full podcast.
One of the primary criticisms of Penrose's theory is that quantum effects are easily
disrupted by any environmental noise. There's no consensus on whether microtubules actually
play the role that Penrose suggests,
even if just a couple months ago, superradiance was found in microtubules, which is a quantum
effect.
However, it wasn't the quantum effect that they were looking for, but it does demonstrate
that microtubules are capable of demonstrating something quantum-like, even though they're
relatively macroscopic. CTMU, the cognitive-theoretic model of the universe.
Christopher Langan's cognitive-theoretic model of the universe, also known as the CTMU,
is highly ambitious.
It's like, super ambitious.
It aims to explain everything, including consciousness, within a single unified framework.
Now, here's a bit of a background.
A theory of everything in physics is something that quote unquote harmonizes general relativity
with the standard model.
And Langan takes this word from theory of everything, the everything word, farther than
just those two, standard model and general relativity.
He takes it to mean everything in the universe, including the universe itself,
including consciousness, including the laws, including you, including even what we can't model.
Some more background is that Christopher Langan is an autodidact with an extremely high IQ.
This was measured several times, and he's had a rough, underprivileged childhood.
I've spoken to Christopher here for four hours on his theory,
so click in the description to see. Langen argues that the universe is a self-referential system.
In some sense, he thinks that consciousness comes from the universe's ability to reflect upon itself,
though even what I just said isn't quite right. It's difficult to summarize the CTMU shortly. The CTMU is grounded in the idea that information and cognition are both fundamental to reality.
Information is self-referential.
Okay, what does that mean?
Well, it means that it refers back to itself.
He suggests that the universe is a quote unquote self-configuring and self-processing language
capable of understanding and manipulating
its own information.
Actually, to be more accurate, according to Christopher Langan, reality is both the language
and the processing of that language.
And that's the entity that Langan calls self-configuring, self-processing language.
Consciousness then is a fundamental aspect of this universal
language, with humans and other conscious beings acting as tellers, quote-unquote tellers, or agents
that contribute to the universe's self-actualization. You'll notice that many theories of consciousness
deride language as being a low-resolution means of communication. I personally think that's an
extremely impoverished view of
language, and you can see my Substack article here about how language is also the process
of creation and discovery, not just transmission. Langen is similar in that he doesn't hold
a language with such low regard, and in fact, he elevates it to the highest category. It
is what the universe is. The universe is not only expressed in language, but is that language.
So how does the CTMU align or disalign with other theories we've explored? How about idealism?
Well, CTMU somewhat aligns with idealism. How so? It sees consciousness as fundamental to reality.
Yes, the CTMU suggests that the universe is essentially mental and that the physical world is a manifestation
of consciousness.
Now, this resonates with idealist philosophers like George Barclay and Bernardo Castro.
However, while Langen aligns with idealism, he would say that it's incomplete and akin
to talking only about, say, the number three on a dice.
Sure, there are three dots that about, say, the number 3 on a dice. Sure, there are
three dots that exist, but there are other dots. We talk about this in this podcast with
Kastrup and Langen here.
Now, how does CTMU align with materialism? In some sense, the CTMU aligns with materialism
in the same way that it does with idealism, in the sense of encompassing it. Materialism,
by the way, would say that consciousness is a byproduct of the physical processes in the sense of encompassing it. Materialism, by the way, would say that consciousness is a byproduct of the physical processes in the brain, whereas in the CTMU it sees consciousness as
fundamental to the universe itself. One of the primary criticisms of the CTMU, other than its
use of abstruse language, which is somewhat punny given it's a theory about language, is its reliance
on the concept of self-reference.
While self-reference is an established concept in mathematics and logic, its application
to the universe as a whole isn't clear.
It's not clear what it means for the universe to be self-referential, but at least to me,
it's not entirely unclear, nor is it for him.
Wheeler, for instance, drew this image to talk about the universe
and an observer. In fact, I talk more about that in this podcast here with Amanda Gefter.
John Joe McFadden's Conscious Electromagnetic Field Theory, also known as Semi-Field Theory
Have you ever wondered how this supposed lump of meat that we call our heads, which is what
a denigrating materialist may say, gives rise to what we call conscious experience?
Well, John Joe McFadden, a molecular geneticist, proposes a different sort of theory of consciousness
that centers on the brain's electromagnetic field.
He calls this the conscious electromagnetic information field theory or semi-field theory.
McFadden argues that the brain's EM field integrates information from different brain
regions. The EM field of our brain isn't just a by-product of neuroactivity. Instead, it's
the substrate of consciousness itself. McFadden suggests that this EM field integrates information
from different brain regions,
creating that unified experience we all know so well.
Semi-field theory goes against the traditional view that consciousness is solely a product
or byproduct of neural activity because EM field is the main dog here in consciousness,
at least according to John Joe.
How so?
Well, it acts as some kind of global workspace that binds together information
from different brain regions. Notice that word quote unquote binding, which should remind
you of our previous layer, linked in the description, about the binding problem. McFadden suggests
that this problem is solved because the brain's EM field unifies the diverse neural activity into a singular conscious experience.
How?
I'm unsure, but this is what he believes.
I don't understand it.
Additionally, semi-field theory gives an explanation of free will.
It suggests that the EM field's influence on neuronal activity allows our conscious
intentions to shape our actions. The EM field acts as a sort
of feedback loop that amplifies and synchronizes neural activity, leading to
the emergence of a unified conscious experience. But how does it compare to
other theories? So let's just take dualism for instance. Semi-field theory
could be seen as a form of property dualism, where the brain's EM field
is seen as a non-physical property that emerges from the physical activity of neurons.
However, McFadden himself rejects dualism, arguing that the EM field is a physical phenomenon
that can be explained by the laws of physics.
How about panpsychism?
Well, semifield theory doesn't align with panpsychism. It contradicts it.
Panpsychism again says that consciousness is a fundamental property of all matter,
but semi-field theory says that consciousness is a product of the brain's EM field,
which is generated by the electrical activity of neurons. Now one of the main criticisms of
semi-field theory is that it's unclear how the brain's EM field could give
rise to subjective conscious experience. While the theory suggests yes, okay, the EM field
has something to do with consciousness, it doesn't explain how this integration of different
brain regions result in the qualitative feel of conscious experience. So another criticism
is that semi-field theory, like many others, they don't address the
problem of qualia.
Why would it be that a certain field configuration produces a specific quality of conscious experience,
such as the smell of books in a library, or the slipperiness of ice, or the painfulness
of pain?
What's wonderful, though, is that McFadden's theory is potentially testable.
We could look for evidence that the brain's EM field is correlated with conscious experience,
while we do already with EEG studies. If there are changes in the EM field that are
consistently associated with changes in conscious experience, some would say that
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David Chalmers Extended Mind Hypothesis
David Chalmers is a prominent philosopher of mind.
He's one of the top figures in the consciousness study scene, and he's the one that's known
for formulating the hard problem of consciousness.
In fact, without David Chalmers, we probably wouldn't even be talking about consciousness,
at least not in this high-browed philosophical manner.
Maybe we would if we were meditating at a monastery.
But that'd be it.
Now that hard problem of consciousness is something that comes up over and over again
throughout this entire iceberg, as you're well aware.
And what it is, is an explanatory gap between physical processes in the brain and subjective
experience.
How do you ever bridge that divide?
How does one give rise to the other?
Now David Chalmers is known for that, but he's also known for his extended mind hypothesis
along with Andy Clark.
Okay, so what does this hypothesis suggest?
That the mind is not limited to the brain.
It can extend into the environment. Through what? Through
interactions with external objects and tools. Think of it like this. If you have a notebook,
you store information on that notebook, it becomes a part of your cognitive system. Same with your
phone in a sense, and thus potentially part of your conscious experience. Now, does that mean
that when you leave your room and someone stabs your notebook like Harry Potter did to Tom Riddle that
all of a sudden you'll dissipate into a sea of nothingness? Not exactly, but the
extended mind hypothesis does go against the traditional view that the mind is
confined in the brain. It suggests that the mind can incorporate external
objects and tools into its cognitive process,
and these external elements become integrated into our cognitive system, although our conscious
experience still remains rooted within us.
So you don't have to worry about any horcruxes.
Can we extend this idea from notebooks to other technologies?
Chalmers argues that we can. Again, he says
that our smartphones, our computers, the internet can be a part of our extended minds. We increasingly
rely on these technologies to store and process information and they become integrated into
our cognitive apparatus, whatever that means. They may even contribute to our conscious experience. Now keep in mind that David Chalmers
emphasizes that this hypothesis is about cognitive processes
extending into the environment rather than consciousness itself extending beyond the brain.
He steadfastly maintains that while cognitive functions like memory and problem-solving can be supported by external tools, consciousness remains largely an internal phenomenon.
Maybe even entirely.
To be clear, Chalmers notes that while our minds can extend into the environment through
these cognitive processes, our consciousness, the subjective experience of awareness, doesn't
necessarily extend beyond the brain.
Alright so now let's look for similarities, coherence, decoherence, and contradictions.
How about with embodied cognition?
Well the extended mind hypothesis comports with embodied cognition in the sense that
it sees the mind as embedded in the environment.
Actually the four E's of cognitive science in general are consonant with
Chalmers' view. Embodied cognition emphasizes the role of the body and the environment in shaping
cognitive processes. How about Rupert Sheldrake's theory of morphic resonance? Well, that's an
extended mind theory as well. We talk about that here with Rupert Sheldrake, and feel free to click
on the screen or the link in the description.
Internalism is something that does contradict the extended mind hypothesis. That's the view that the mind is entirely contained within the brain.
Internalists suggest that mental states are internal to the brain and that external objects and tools can only influence the mind indirectly
by causing changes in the brain.
Idealism is also something that the extended mind hypothesis doesn't fully align with.
Why? Because the extended mind hypothesis focuses on how cognitive processes can extend
into the environment through interactions with external objects without making claims
about the fundamental nature of consciousness or the fundamental nature of those external objects.
So one of the main criticisms of the extended mind hypothesis is that it blurs the boundary
of the self.
If consciousness can be extended beyond the brain, where does the self and the environment
begin?
Now, this may not be such a critique, since defining the self, the quote-unquote self,
is one of the trickiest
aspects of any theory. Indeed, it's a tricky aspect of any theory of objects, that is,
what defines the essence of an object that delineates it completely from others.
Ian McGilchrist's Relational Dual-Aspect Monism
Ian McGilchrist is a psychiatrist, a neuroscientist, and a literary scholar who proposes a theory
of consciousness.
This one's often described as relational dual aspect monism.
That's a mouthful, but we'll explain it.
This view, which is deeply informed by his research, by the way, I constantly say there
are only two books I recommend, Girdle Escher Bach and
Master and His Emissary.
Girdle Escher Bach we talked about earlier, Master and His Emissary is Ian McGilchrist's.
That suggests that consciousness is a fundamental feature of reality.
But that consciousness manifests in two distinct manners, the material world and the world
of experience.
McGilchrist argues that these two aspects are not separate substances as traditionally
thought of in dualism, but they are two sides of the same coin.
He suggests that consciousness is a relational phenomenon.
What does that mean?
It means it comes about through the interaction with the brain and the world.
It's only through interactions, through comparisons,
through connections that we get the essence of mind and pattern.
McGilchrist's theory is rooted in his research on the brain's two hemispheres. He argues
that the left hemisphere is specialized for analyzing the world into discrete parts, abstracting
and seeing sameness, while the right hemisphere is specialized for synthesizing
these parts into a unified whole, seeing context and distinctness.
Ian suggests that consciousness comes about from this exchange between the two hemispheres,
or you can even call it a conversation.
What's important though is not to see as the right as being right, or the left as being
more right or wrong or what have you, it's that each hemisphere provides a different mode of quote unquote attending
to the world.
I spoke to Ian McGilchrist for hours on end, four hours actually, both here and with John
Ravecki.
So, solo one is here and one with John Ravecki is here.
Many people consider it to be one of the best conversations on the theories
of everything channel and also one of the best conversation with Ian himself, at least according
to the comment section. Click on that if you'd like to see it. I highly recommend. Now let's
compare McGilchrist's theory with panpsychism. Again, panpsychism says that consciousness is a
property of all matter. McGilchrist considers himself to be
a panentheist. You can actually hear Ian claim this explicitly. Again, the podcast is linked
on screen and in the description. This means that God is in everything, but also transcends
everything. This contrasts with panpsychism, where consciousness is just fundamental to
all matter and that's all, whereas McGilchrist's view implies that there is a deeper unity, a more holistic,
whatever you want to call it, view of consciousness that isn't just a property of matter. Panentheism
accommodates both the immanence of the divine in the material world and its transcendence.
Now one of the hugest criticisms of McGilchrist's theory is that it's unclear how would it
be that the interaction between the brain and the world gives rise to subjective experience,
again the hard problem.
While the theory suggests that consciousness is a relational phenomenon, it's not as if
it gives a specific mechanism by which this relation could produce conscious experience. Whatever it is though, Ian McGilchrist's theory challenges us to reconsider our traditional
assumptions about the mind-body relationship, not even just that, the mind-world relationship
and your relationship with everyone else and your relationship with yourself. New update!
Started a sub stack.
Writings on there are currently about language
and ill-defined concepts as well as some other mathematical details.
Much more being written there.
This is content that isn't anywhere else.
It's not on theories of everything.
It's not on Patreon.
Also, full transcripts will be placed there at some point in the future.
Several people ask me, hey Kurt, you've spoken to so many people in the fields of theoretical
physics, philosophy, and consciousness.
What are your thoughts?
While I remain impartial in interviews, this substack is a way to peer into my present
deliberations on these topics.
Also, thank you to our partner, The Economist.
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