The Wolf Of All Streets - Bitcoin Will Save Money | David Marcus, Lightspark
Episode Date: June 4, 2025Discover Bitcoin Yield: https://archpublic.com/ I sat down with David Marcus to talk about why he left Facebook's Libra project and went all-in on Bitcoin. We got into the weeds on Spark, his new Bi...tcoin Layer 2, and how it solves what Lightning couldn’t. This episode of The Wolf Of All Streets is packed with bold takes on stablecoins, decentralization, and why Bitcoin is the only way forward. David Marcus: https://x.com/davidmarcus ►► JOIN THE FREE WOLF DEN NEWSLETTER, DELIVERED EVERY WEEKDAY! 👉https://thewolfden.substack.com/ ►► Arch Public Unleash algorithmic trading. Discover how algorithms used by hedge-funds are now accessible to traders looking for unparalleled insights and opportunities! 👉https://archpublic.com/ ►►TRADING ALPHA READY TO TRADE LIKE THE PROS? THE BEST TRADERS IN CRYPTO ARE RELYING ON THESE INDICATORS TO MAKE TRADES. Use code '10OFF' for a 10% discount. 👉https://tradingalpha.io/?via=scottmelker Follow Scott Melker: Twitter: https://x.com/scottmelker Web: https://www.thewolfofallstreets.io/ Spotify: https://spoti.fi/30N5FDe Apple podcast: https://apple.co/3FASB2c #Bitcoin #Crypto #Lightspark Timecodes: 0:00 Intro 1:35 From Libra To Bitcoin 3:02 Why Libra Really Failed 4:22 Stablecoins Built On Bitcoin 6:25 Spark - Bitcoin Layer 2 7:45 Real-Time Global Payments 9:18 Can Banks Keep Up? 10:38 Will Users Even Care? 12:16 Bitcoin Beats Other Networks 13:32 Why Build On Bitcoin 15:06 Bitcoin vs Hyperdollarization 16:42 Stablecoin Regulation Coming 18:28 Too Many Stablecoins? 19:56 Avoiding Systemic Risk 21:11 Earn SATs With Rewards 22:17 Lightning Works For Custodians 23:33 Cambrian Bitcoin Moment 25:01 Bitcoin Wasn’t First… The views and opinions expressed here are solely my own and should in no way be interpreted as financial advice. This video was created for entertainment. Every investment and trading move involves risk. You should conduct your own research when making a decision. I am not a financial advisor. Nothing contained in this video constitutes or shall be construed as an offering of financial instruments or as investment advice or recommendations of an investment strategy or whether or not to "Buy," "Sell," or "Hold" an investment.
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This incredible conversation was recorded live in the ArchPublic Lounge at Bitcoin Las Vegas.
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Tron is one of the most hated networks, certainly among Bitcoin Maxis and many others.
That's not even worth debating.
Like stablecoins are all hyped up right now.
But like if you're in Brazil, you want Brazil in reais for the most part.
If you're in Mexico, you want Mexican Peso. If you're in Europe, you want Euros. Stablecoins are all
centralized fully. And that's why you want to be asset agnostic. I think the only currency that
will have successful stablecoins is dollars. This is the way we believe. David Marcus helped build
PayPal and led Facebook's Libra project, which ultimately was doomed.
Now he's all in on Bitcoin.
After trying to build stablecoin infrastructure on the Lightning Network for years, he scrapped it and launched Spark, a new layer to purpose built for building on Bitcoin and for stablecoins.
We talk about the Libra failure, why lightning didn't work, and of course, why this new blockchain will bring everything back where it belongs to Bitcoin.
If you're interested in the evolution of Bitcoin infrastructure, this episode is for you.
All right.
Okay, now you guys can make noise.
All right.
Let's go. This is the first time we've sat down.
Yes.
I'm honored.
You've obviously been through every step in the tech process, PayPal, Facebook, you were one of the first to attempt to launch basically a private stablecoin,
obviously at Facebook with Diem, and eventually landed on Bitcoin.
So curious why Bitcoin, you could literally be doing anything,
how you found it and why you've decided to build there.
Well, I think, you know, I still like to call it Libra for what it's worth,
but, you know, Libra was a very spectacular failure because it actually
represented something that will potentially happen in the distant
future. It allowed us to see actually in the future what would happen if stable
coin actually gained so much prominence
that it would threaten the unit of accounts that are controlled by governments around
the world.
And that's the key lesson.
The key lesson is that you cannot build an open money grid for the world that enables
all of the money to move in real time like any other content type on the internet on
top of a centralized stable coin if the whole network depends on one.
And that was the key lesson.
And the fact that Facebook, Naometa, was the main sponsor behind Libra created that fear factor ahead of it actually happening.
And because, you know, Facebook reaches three billion people every day, maybe four now.
And so it presented a real threat.
And the lesson here is that if you want something that really behaves like the internet, that
is really truly neutral digital money, that really behaves like TCP IP packets for money
on the internet, there's only one that fits the bill and that's Bitcoin
Everything else is too centralized and everything else is not neutral enough
Do you think if you will launched it in the current regulatory and administrative environment that it would have been different or do you?
Still think that the size of meta would have been prohibitive. I don't know
I mean look if you if you look at the even the latest
I mean, look, if you look at the even the latest draft of the genius bill, there's a section in there that is clearly designed for companies like Metta not to do it.
And so I think like it's just a matter of scale.
Swift Correspondent Banking, JP Morgan, global money movement platform, Citi global money
movement platform moves tens of trillions
of dollars a day.
And so stablecoins are for now barely making a dent, it's growing, but there's no real
systemic threat to the unit of accounts that are controlled by the central banks of all
of the major countries.
And I think building infrastructure on top of Bitcoin, which is truly neutral digital
money is the way to go.
And then you can actually use stablecoins on top of Bitcoin if you're actually performing
a dollar to dollar transaction or for places where people would rather have a fake dollar
account, so to speak, dollar bank account, because they can't have the real thing in
all kinds of different parts of the world, then stable coins are very, very useful.
And we can use that on top of Bitcoin as well now.
Interestingly, we've seen stable coins explode.
Obviously, you could argue that beyond Bitcoin, it's been the killer use case for crypto and
for blockchain technology, but we haven't seen it on Bitcoin.
Why is that?
Well, I think that there are a series of limitations. So Bitcoin, as
we all know, is not very programmable. It's not very easy to build on for developers.
It doesn't have smart contracts. As such, it was really, really hard to do. And so we've
been building on Lightning for the last three years. And there were attempts or there are
attempts to actually issue stablecoins on top of lightning
We reached a conclusion that that was not going to work because of the channel
Setup of lightning lightning is a channel based payment system
If you want stable coins to actually exist on top of lightning
Every party that transacts with another needs to configure specific channels for the specific stable coin that they're about to move.
You need to provision liquidity in all of these channels.
It splits the liquidity in many, many channels.
So it's not capital efficient.
It's not actually competitive with other fast networks like Solana or Base or other non-Bitcoin types of networks.
And so we kind of realized that and about a month ago, not even a month ago, we launched
Spark which is a brand new Bitcoin L2 that we're very excited about.
But obviously not only we are very excited about, many builders and developers around
the world are very excited about because it takes the best from Lightning, which is real time, cheap,
fast transactions.
But it works for self custody wallets, which Lightning doesn't really work well with.
And it enables native issuance of stable coins on top of Bitcoin for the first time with
lots of great attributes.
Notably, you don't have to pay gas fees with a foreign asset because you pay it in the asset
you're transmitting. So, you know, this is the way we believe. Is this a base layer for multiple
stable coins or do you think that it will be a single stablecoin,
like a tether or a circle, or will you actually have a migration of those to Spark?
The way we look at things is that we want all of the best stablecoins on top of the
network.
We are very much asset agnostic.
The only thing we care about is that the network that moves the value is Bitcoin.
That's the only thing we care about.
However people want to get paid or pay,
they should be able to do it on top of the network.
And that's how Bitcoin wins is by being asset agnostic.
You wanna move US dollars, not a stable coin,
you wanna move US dollars from your bank account
to someone in Mexico receiving Mexican peso
in real time on top of Bitcoin, you can do that.
You want to send stable coins to a self-custody wallet in the other side of the world in real
time, you can do that too.
And we make it all interoperable with one another.
So asset agnostic, build an open money grid on top of Bitcoin that settles in real time
24-7 at a very low cost supports all the assets
Connects with all of the domestic real-time payment systems in the world
that's basically what we're doing at lights park and there's no concern that
Stable coins have proliferated so much on other networks. They've become so popular that stable coins at Bitcoin can't catch up
No, look, I think people assume that a stable coin is both a digital version of the dollar and a network and it's only the former.
And so right now, I feel like, like I said before, tens of trillions of dollars move
internationally every day.
And we're barely making a dent with stablecoins right now.
So it's all the hype in crypto.
Like in payments, we're just barely starting to eat
into that volume that's currently basically controlled
by the major banks around the world.
The jury's still out as to which network is going to be
the winning network to transport money around the world.
And I'm 100% confident it will be Bitcoin.
It's just a matter of time and a matter of us removing
all of the things that have held Bitcoin behind and back
because it couldn't do the things
that other networks could do.
Your perspective is obviously extremely valuable
since you ran PayPal.
Are those incumbents going to adopt this technology
as it becomes more popular, or do you think
it's going to eat their lunch?
I think it depends.
That's their choice, right?
But we're already seeing it happen, right?
It's like, you know, we have this payment system, payment network on top of Bitcoin
with universal money addresses or UMAS that New Bank and now other participants like Revolut and
many, many others are onboarding on. And so if you're a digital bank and if you're ahead of the
curve and you're actually adopting these new technologies, you can really compete with all
kinds of different wallets that are emerging. But if you decide to just hold the fort for as
long as you possibly can, it's the typical
innovator's dilemma and you'll just start falling behind.
Become blockbuster.
Yeah.
Which I think that's inevitable for most of them, but it does seem like Visa, MasterCard,
PayPal at least are cognizant of this and are trying things.
For sure.
And PayPal has a stablecoin, PYUSD, that they're pushing.
Definitely Visa and MasterCard are trying to move to use their capabilities to make
those capabilities compatible with crypto and stablecoins.
And I think that's the way to go.
For the average end user, do you think that they'll care deeply that it's built on Bitcoin?
One of my things I'm the most shocked about consistently is when I look at the stats and
always see that most of the tether is on Tron.
Tron is one of the most hated networks, certainly among Bitcoin maxis and many others, that's
not even worth debating.
But that's what people are using because in some country where obviously stable coins
are popular, their friend says, download this wallet, I'm going to send you money.
I don't think they even know that it's Tron or Care.
But how do you get them to care that it's a stable coin on Bitcoin?
So first of all, I think that people care about Bitcoin the asset, forget the network.
And they care about Bitcoin the asset, not in a payments use case. They care about it because they want to stack Sats and continue to be on that train of appreciation
that we've all been enjoying for a while.
I think that's a very powerful thing.
So the combination of using fiat stablecoins for payments on top of Bitcoin and having
rewards and all kinds of different things paid in sats.
That's something that I really believe people care about and more people than we think actually
care about.
And now as far as the network is concerned, if we're just looking at money transmission,
it is our job to make Bitcoin the most efficient transmission layer for money.
And that's certainly what we've set out to do, but we're joined by many people building
alongside with us.
And if you make it the most efficient network, then money is like a little bit like water.
It'll choose the path of least resistance.
It'll go there.
And I think we're very close to being there.
So it can actually be faster and cheaper than the other networks?
Yes, it is. If you're moving a stablecoin than the other networks? Yes, it is.
If you're moving a stablecoin on top of Spark right now, it is cheaper and it settles faster
and you have less trust because you can have unilateral exits to Bitcoin L1.
It borrows all of the trust of Bitcoin L1 and solves all of the limitations of Bitcoin
L1 at the same time.
You get all of the limitations of Bitcoin out one at the same time.
So you get all of the security of the base layer.
It's pretty astounding.
Obviously, we've seen a number of the other stablecoin issuers have to deal with different regulatory environments,
but also rollbacks of illicit transactions and all of those things.
Will that exist with effectively any stablecoin because of the regulatory or legislative environment?
Is that what determines it or is it dependent on the base layer?
Obviously, people point to Ethereum, they say you can just roll it back.
You could just take the transaction.
This is exactly why we need to build on Bitcoin, because Bitcoin itself is the network that has the least amount of human
interference and possibilities of humans actually messing it up. Everything else has the possibility
of being messed up or interfered with by humans. And I think that's the key thing. Now, as far as
stablecoins are concerned, stablecoins are all centralized fully.
So it really depends which stablecoin, how do they manage the reserves, how do they manage
their compliance programs.
And then it matters who are actually who are the endpoints on the network, who is transacting
on the network, what is their compliance standard.
But all of that doesn't matter.
The intranet is not at fault when something actually happens on top of the internet.
And it will be the same with Bitcoin.
It depends what you do on top of it, who are the actors, what are they doing with it, how do they behave.
And that's why you want to be asset agnostic.
You want a network that can move all forms of value 24-7 at a low cost in real time and has the most reach possible
and the most depth of liquidity also with many fiat currencies.
Stablecoins are all hyped up right now, but if you're in Brazil, you want Brazil in real
is for the most part.
If you're in Mexico, you want Mexican peso.
If you're in Europe, you want euros.
Then USD stablecoins are useful for many, many countries, but not in these regions.
So I think it's important to have a network that also can convert into fiat at the last
mile for people who want that.
Do you think that we'll see popular peso-backed stablecoins and euro-backed stablecoins?
I don't think it matters.
I think the only currency that will have successful stablecoins is dollars.
Anyone else that's trying to do euro stablecoins or peso stablecoin or anything else, people
want dollars.
Yeah.
You're in an interesting place where you're threading the needle between Bitcoin maximalism
and hyper-dollarization.
Have you had pushback as a result of that?
Because obviously there's certain part of the Bitcoin
community that thinks stablecoins are just fiat,
which is the reason they're buying Bitcoin
in the first place.
Yeah.
I mean, look, I feel like stablecoins are just a way
to digitalize or digitize dollars.
That's it.
What matters to me is that it's built on Bitcoin,
that people have an escape valve to Bitcoin
that's actually built into the system
so that we can keep everyone else honest in the process.
I think that's one of the values of Bitcoin.
And that's what we're building.
Are there any things that you see from the Genius Act
or the Stable Act or anything that's coming through Congress
and the Senate right now that concerns you, maybe unintended consequences or something
that perhaps is being thrown in there, I wouldn't say sinister intentionally, but something
that could be prohibitive to these being successful in the future.
You even talked about the fact that it still wouldn't be very easy for Meta to
launch a stable coin with the current legislation.
Yeah, I think, look, I think at the end of the day, we need clarity.
And this bill is really important for everyone in the industry, because it's actually going
to make stable coins real money.
So now it's like a unit of a stable coin and a unit of a dollar are going to be money.
And that means that every regulated financial institution will be able to interact with
those assets, will be able to build products around them, will be able to legitimately
use those.
And I think that's really the critical step that is needed for us to unlock all of the
value that's ahead.
Do you think then that we will see thousands and thousands of private stable coins, we
have JP Morgan coin and Goldman Sachs coin and BlackRock coin?
Or do you think that some existing or future stable coin will become the main unit of account
or the main stable coin that's used?
Well, look, I think the real question is what problem you're trying to solve with a stablecoin.
There are different problems you can solve.
There's problems of giving people all around the world that can't have a real US-based
bank account denominated in US dollars to have a US dollar balance.
That's one thing I think for that, I think USDT is clearly way ahead of everyone else
on that front.
They were early.
They have amazing reach and liquidity.
Then you have institutional use cases that are both in the US with USDC and others that
are going to issue. But I think if you're a depositor of a balance in dollars,
you're going to be hard pressed not to want
to issue a stablecoin.
It extends the economics of your deposits
when those deposits have left your walls.
And I think just for that reason,
you're going to have many, many stablecoins being issued
by all kinds of depositors around the world.
And then it's going to be a question of like how do you orchestrate all of that across so many different networks,
so many different pools of liquidity, etc.
I think that's what Stripe saw in Bridge, which is doing an excellent job at like orchestrating across all of these stable coins and networks.
But what we really care about is, okay, great, like you have all of these stablecoins now,
what is the most efficient network that is the most decentralized that those stablecoins
can actually exist on and can we build it on top of Bitcoin, which we believe Spark
is that, but that's the mission.
Because the worst case scenario for me is that you have stablecoins, you have thousands
of stablecoins on dozens of different chains.
All of those stablecoins are fully centralized.
All of the chains are not sufficiently decentralized.
And so you're basically recreating the existing financial system fully centralized in the
same way that it is, with new players just replace the names
And so that to me is not the Internet of money and what we all want
I think is an Internet of money that has sufficient
Decentralization and that behaves like an Internet of money and the only way you can do that is by building on Bitcoin
I think you answered my next question, but as
These become more popular. Is that the systemic risk or Or I was going to ask, is there a systemic risk
to having this many stablecoins and the market becoming so big?
Is that what it is, is effectively
creating existing problems of the financial system?
Well, yeah, especially if you have humans controlling all of it
in a super centralized way.
And I think at the end of the day, what you want is like something
that really behaves like the Internet, where money is just a content type that can travel on it in an efficient manner.
And we can unlock like a few points of global GDP for the entire world if money can go where it needs to be at any given point in time.
And you want that network to truly be neutral, to truly be decentralized, to not be opinionated as to what you can or
cannot do with your money.
And the only network that really fits the bill for that, like if you think about it,
and if you think about it even deeply for a long time, the only network that is neutral
enough and that's decentralized enough to fit the bill is Bitcoin.
Earlier, you mentioned that one of the reasons to build on Bitcoin was rewards and sats
Yeah, and all these interesting things you could you talk more about that because that wasn't even on my radar
Yeah, look, I think that the reality is if you think of like today today rewards and and and all kinds of different ways
That people can accumulate all kinds of value across all of the different
all kinds of value across all of the different entities that they interact with,
their credit card issuer, their airline company,
gaming companies or gaming experiences that they have.
I think that if you ask an increasing number of people
would want to get those in Sats and start to stack Sats.
And so how do you do that in a really secure,
fast self-custodial way,
you can really do that really well.
You spin up like a bunch of Spark wallets on top of Bitcoin,
you drop Sats everywhere when you actually trigger an event.
And I think this is a really great way
to create self-custodial wallets
to billions of people around the world
now that you actually technically can.
And get people to care more about Bitcoin the
asset and a network not only
Just a you know transmission layer that to your point. They won't care about
It's interesting that you built on lightning for so long and it didn't work. Well, no lightning works great
It didn't work for your purpose. No, no, and so let me be clear lightning is great for
custodial endpoints.
So we power Coinbase's lightning implementation and 15% of the transactions that are moving
in and out of Coinbase on Bitcoin use this implementation of lightning.
If you're an exchange, if you're a bank, and you're trying to move Bitcoin in a completely
trustless way with
another custodian, Lightning is fantastic.
If you want to actually interact with self-custodial wallets or if you want to issue stable coins,
it won't work is our conclusion after having worked on Lightning for now three years.
And so we really like it for the full trustless implementation of a
layer on top of Bitcoin that has zero new trust assumption. And that's why we
made Spark fully backward compatible with Lightning. So you can be on Coinbase,
send on Lightning a transaction to a Spark wallet without even knowing it's a
Spark wallet, and it'll work seamlessly.
That's why those two things we feel are actually good networks to build on.
It seems like you have impeccable timing for the launch of Spark.
We're in a Bitcoin bull market, clearly, but there's also been a Cambrian explosion of
building on Bitcoin that didn't exist before.
Obviously, I think Taproot contributed to that with runes and ordinals and people trying things
and it feels like they're bringing everything
that was tried on other chains
sort of as a test net back to Bitcoin.
But we're probably now gonna see hundreds of layer twos
being built on Bitcoin, right?
Maybe, it's hard.
Like building on Bitcoin is hard.
Solving problems that we solved with Spark
in terms of like trying to really avoid new trust
assumptions to the maximum extent possible without new up codes on Bitcoin Core, having unilateral
exits to L1, enabling the support of tokens and stablecoins and all kinds of different assets to
be issued on top of Bitcoin for the first time.
Those things are actually really, really hard.
And that's why it took us so long to figure it out,
because finding the right balance of being
developer friendly and also be maximally trustless
is actually pretty challenging.
But I think what we're seeing, this thing is not even
a month old since we launched Mainnet.
But what we're seeing is the developer energy that's building on Spark right now is absolutely incredible.
And it really, really exceeded my expectations by an order of magnitude.
It's like insane. And so to your point, there's a lot of pent up energy of developers, of builders that
have been wanting to build on Bitcoin and couldn't build on Bitcoin because of the limitations
of the underlying network.
And now that you free that up, like the only reason that all of these people built on other
chains is because Bitcoin couldn't do it.
And in some ways, it's been a good thing because Bitcoin has been able to actually stay stable
And secure for the longest time and establish itself as you know, the true like
You know king of crypto or if we can call it even crypto
But you know, and so it's it's now fully accepted by all of these institutions around the world
it's it's now fully accepted by all of these institutions around the world. It's resisted all of the assaults that it has.
And so now we're in a place where we can actually
really start to build on top of all of that liquidity,
all of that security, all of that neutrality
for the first time.
So maybe it needed that time.
Yeah, Brock Pierce, for as eccentric as he is,
I was having a conversation with him about it, and he said, you don't need to be first if you're the biggest. Yeah. Brock Pierce, who is as eccentric as he is, I was having a conversation with him about
it.
He said, you don't need to be first if you're the biggest.
Yeah.
Just wait for everybody else to fail and then bring the good ideas over.
I thought that that was pretty prophetic.
I think that's actually what's happening.
I know you got to get on stage with Senator Hagedee and Congressman Emmer, I think.
Interesting after this conversation.
The final question is, when do you think, what's the timeline for seeing a meaningful,
competitive stable coin on Bitcoin?
I think it's going to happen within the next couple of months, if not sooner.
Very fast.
I'll take it.
Thank you so much.
Thank you. Thanks for watching!