Transcript
A (0:00)
The whole point of libertarianism is that we should recognize that we don't know how to plan the world. We don't know what the solution is going to be. You can't have a central planner decide it. If it was really just that libertarians understood how the world worked, then you could have a central planner. You would just need them to be libertarians. That's not how it works at all. It's antithetical to the whole concept. That's why the block size war was such a huge success, because it did not hard fork, it did not decide, oh, if there is a schism in the community, one small group is going to be able to force it onto everybody else. And that's exactly the thing that you actually need to have society's rules be sustainable. Because otherwise that's all you get. You get people who will violently disagree about the tiniest and then they will put a gun to everybody else's head and they will say, you just got to come along with me or you're, or you're screwed.
B (1:04)
Guy Swan, host of Bitcoin Audible welcome to the show.
A (1:08)
What's up boss? Good to be here.
B (1:10)
Cheers. Thank you for joining us. As I was saying, I've been a big fan of you, your content and appreciative of all the work that you've done for the bitcoin community, spreading education for, for many years, over 1300 episodes of Bitcoin Audible. Really it's just a huge contribution that very few can say that they've done as much as you. And one of the things I love about your content is that you are able to, as I said, distill complex topics into easy to understand explanations. And so let's get right into it. The biggest topic right now that's the talk of the town this week, of course is quantum. Google just put out a paper this last week saying that they are much closer than they originally thought to possibly breaking ecdsa, the algorithm that of course that protects Bitcoin, the cryptography. And many people are on different sides of the fence of this issue. So before we get your take, can you please just explain to the audience simply what is the quantum threat to bitcoin?
A (2:12)
So it's basically, can you reverse a public key back into a private key? You know, like everything works in generally in cryptography, since public key cryptography in the late 70s is you, you issue like your private key is your key and your public key is a lock and you can give your lock to anybody and then they are able to send you information or encrypt a message with your lock and then you are the only person who can unlock it. And literally all of Bitcoin works based on that assumption. All of cryptography works based off that assumption. Is that the only reason you are the owner of your Bitcoin is because when you public share your lock and someone locks it with that lock and says oh I'm going to use this to lock up these funds, you're the only person who can take the key and sign and prove that you can unlock it. And so the idea of a quantum machine and the, the, you know, the ultimate threat to all cryptography and of course a money based on cryptography would be does that assumption hold? Are you can someone get your key without needing to get your key know, can somebody recreate your key? And so a quantum computer is theorized as a device. And, and the way I understand it, I hate this topic because it is. There is nothing that has more jargon there. Nothing on planet Earth has more jargon than quantum. And the. I swear to God they go out of their way to explain things badly. Like to, to not make it make any sense at all. But if I wanted to give like a general idea is that like imagine you set up like a chip. You know chip, chips are always a 0 or 1, right? Let's imagine you can set up a chip. You can set up these, these little gates and every single one of them is sitting right between a 0 and 1. Neither one of them actually exists in any place. And you don't know what the input is, but you do know what the output is because you have a circuit that's actually designed to do one function. There's actually a single path of least resistance where an input actually enters the output or actually creates the output. And so what if you could put all of these things in a perfectly like cannot be affected by like any tiny, tiny little effects effect of anything in any direction will get it to path of least resistance. Fall into this orientation of a private key to create the public key with an algorithm that says here, this, this is where the path of least resistance would lead. Can you then make a chip so that if you give it a public key you can, it will actually just know that this algorithm can be reversed. You don't. You're not actually trying everything, right? The, the idea of cryptography is that you have to try every single possibility and guess. And this would be a way to. How can you set up an environment that is so isolated and so sensitive that if you Just said everything is perfectly between a 0 and a 1. All of the ones would fall right into place and all the zeros would fall right into place because electricity wants to follow that path to get from the public key back to the private key. So that, in a very vague, hand, wavy sense, is kind of the idea of a quantum computer, as I understand it.
