Darin Feinstein14:18
I have a 90-minute accounting speech, and I gave you the abbreviated version. That's the history of accounting: single entry, double entry. That's all I knew. I didn't even think it was bad. I thought that was the only system you could ever have. I just thought you have double-entry accounting, and every accountant, every new software that comes out, tries to add a layer of immutability — they try to say nobody can change this, you can rely on this more because it's so hard to change. What's an example of that? A point of sale in a restaurant. You buy a burger, they hit that you bought a burger, you owe seven dollars. They print your check, you pay in cash and walk away. They void it, they hit the void, and now there's no sale and they just pocket the cash. It's not 100% immutable. The goal always is how do you stop people from being creative? So how do you layer on top of double-entry accounting ways for people to conduct business that give the owners, who can't always be there, some semblance that what's going on every day is being recorded and tracked? The aha moment for me was an article that talked about the ledger. I don't think they used the word immutable, but it made it sound like you couldn't change the ledger. I looked at a lot of systems, especially in my business time. There are a lot of operating businesses that I have that always have problems. When I heard that this network could be immutable, and all I saw was such a contrarian view — from 'you could use it to buy drugs' to 'this is the best accounting ledger technology in the history of the world' — I was like, let me research this a little more. I went through everything. I started reading the white paper, all the ancillary literature I could. When I finished after a few months, I realized that it really was an immutable network. The genius of the network was that the guy never talked about accounting ever. It was an accounting-free white paper. If you wrote an accounting white paper, it would have been ignored by history forever. Instead, he writes a white paper about transaction rescission. This is how smart this guy is, or group of people, or whoever did it: they went to the first principle of how do you change the accounting in the world without changing the accounting in the world. The way they figured it out was on a transaction, if you eliminated the trusted third party. They took it all the way to the bottom and just said the accounting's the root. We're going to change transactions. They figured out the way to fix the world's accounting technology and provide immutability to transactions was to fix the rescindability of a transaction. If you have a permanent transaction, you don't need to know anything about the other side. If you have a transaction that could be rescinded, you need to know who the other party is, who the intermediary is that could rescind it, and what would happen if they rescinded it. They created a rescissionless transaction, which created immutability, which changes the accounting. It took me a few months to go through this rabbit hole of information, all ledger-based. I realized there are really three important concepts here. The first and root is a new accounting technology. That's the base. The new accounting technology changes transactions. After those two things change, it's economics. Economics are so much more interesting than accounting and transactions that 99% of the time you hear about the economics: the theory of what's going to happen in the world if this network is adopted. When I had this moment, I was like, wow, this is real. This is an innovation that hasn't occurred in accounting in 700 years. It's going to disrupt all records. What you have now is single entry, double entry, and through proof of work — which is really the innovation that drove the whole thing — you have a consensus of computers, not stakeholders. So no humans. For the first time ever, consensus is done by computers where they self-audit the entire chain to its inception. Once it's been audited and agreed by all parties, it's written to a third entry: triple-entry accounting. Satoshi did not call it blockchain; he called it a time chain, and I think that's an important distinction. Blockchains were invented in '91, so they were old. The proof of work concept he cites Adam Back, who created it for Hashcash. Another woman, Cynthia Dwork or Dworkin, also created something similar for email. This proof-of-work technology audits what humans would do, self-audits the entire network, and then writes it to the time chain. Once it's written to the time chain, it's immutable forever. You can only append it. I knew it was real. I looked around and said, wow, this is pretty amazing.