BTC098: PROOF OF STAKE (POS) VERSUS PROOF OF WORK (POW)

W/ JASON LOWERY

October 4, 2022

Preston Pysh interviews MIT Graduate student Jason Lowery, who’s a security researcher from the Department of Defense on Proof of Work and Proof of Stake protocols.

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IN THIS EPISODE, YOU’LL LEARN

  • Why are property rights an important starting point for understanding the differences between Proof of Work (PoW) and Proof of Stake (PoS)?
  • Why do the rules around property rights keep breaking down throughout time?
  • Explain the importance of basic computer science and how computer programs work so we can understand the differences in PoS and PoW.
  • A general introduction to PoS and PoW.
  • Hal Finney and Adam Back’s contributions to developing the first blockchain.
  • What is Abstract Power versus Physical Power and why are they important for understanding PoS Vs PoW?
  • If you were going to exploit a PoS or PoW system, how would that work?
  • Creative destruction and how it applies to protocols.
  • How has the faculty at MIT responds to your research?
  • Jason’s thoughts on Jamie Dimon liking everything but PoW.
  • Vitalik Buterin’s comments on PoS not being tethered to physical reality.
  • If you had a message to policy makers, what would it be?

TRANSCRIPT

Disclaimer: The transcript that follows has been generated using artificial intelligence. We strive to be as accurate as possible, but minor errors and slightly off timestamps may be present due to platform differences.

Preston Pysh (00:00:03):

Hey, everyone. Welcome to this Wednesday’s release of the Bitcoin Fundamentals Podcast. On today’s show, I have an absolute must-listen conversation with Jason Lowery. Jason is a master’s student at MIT University and conducting research on the national security implications of proof of work blockchain protocols like Bitcoin versus proof of stake protocols like Ethereum. This is a long conversation, but its importance is unparalleled in my personal opinion. Although we get to the side-by-side technical differences between proof of work and proof of stake near the middle of the interview, I strongly encourage people to listen to the first part of this interview because it provides important first principle ideas for understanding network security.

Preston Pysh (00:00:43):

At the end of the show, I play a couple of clips from various public figures on the topic of proof of work versus proof of stake, and Jason describes in detail why the ideas are noteworthy, misleading or downright dangerous thinking. Finally, if you ever have a friend, relative or acquaintance ever confront you on the implications of one protocol’s technical security versus the other, I would strongly encourage you to share this particular episode with that person so they can hear some of the most profound thinking from a security standpoint on proof of work versus proof of stake. With that, here’s my interview with Jason Lowery.

Intro (00:01:22):

You are listening to Bitcoin Fundamentals by The Investor’s Podcast Network. Now, for your host, Preston Pysh.

Preston Pysh (00:01:41):

Hey, everyone. Welcome to the show. Like I said in the introduction, I’m here with Jason Lowery. Jason, this is long overdue. This discussion is long overdue. I’m really excited to have this with you, so welcome to the show.

Jason Lowery (00:01:53):

Thanks, Preston. I’ve been a low-key fan boy of yours for a while. So very excited to be here.

Preston Pysh (00:01:58):

I’m honored. I’m honored. Hey, so I want to start off this conversation with this idea of property rights. So Jeff Booth is really big on first principles. Let’s start with the first principles thinking on all of this, and you had made this recommendation to me when we were talking about how to go about the show. I think it’s a great idea about property rights and how they first emerged, and then I guess we’ll just take it from there after you take that away.

Jason Lowery (00:02:26):

Okay. Cool. Yeah. So property rights, how they first emerged, how sapiens first started managing their internal resources, determining who has control authority over those resources, determining how to settle disputes related to property rights, and also achieving consensus on the legitimate state of ownership and chain of custody of property. So at some point in the time scale of human beings, we started experimenting with different protocols for doing that, but where we came from was effectively a proof of power protocol.

Jason Lowery (00:03:05):

So before sapiens and even before primates, most animals, especially pack animals, when they just took down a kill and they have excess meat, it is an existential imperative for those pack animals to manage those resources, to determine who has the pecking order, essentially like, “How do you divvy those up? Whose property does this belong to?” So it’s important to realize that this is an existentially important question.

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