Earlier quoted context omitted.
It always surprises me how a tech/startup oriented forum like HN is so negative towards crypto. I think it's insane that someone invented an algorithm to transfer value over the internet, without the involvement of a central party. Basically as soon as it has a tiny bit of value, you can transfer it, and so it has value. It goes so far that you could store the private key in your head, and therefore use your head as…
Is it though? I am pretty sure that building an anonymous payment system for illegal trades is possible without crypto. I have not seen a legitimate use of crypto yet. Not even once.
Of course, for my part I certainly wouldn't be able to independently come up with proof of work chains, the major contribution of Satoshi. Something like Wei b-money with a super-peer network that broadcasts transactions and countersigns those that are legitimate/first. It wouldn't have the strong anti-double-spending features of Bitcoin, but it would work much as current proof of stake coins, as long as the super-peer cabal was not majority-compromised.
I know I could come up with it because I toyed with these concepts in the space of filesharing protocols before 2010, but decided the whole e-cash approach was too heavy. Always wondered what it could have led to if I implemented it back then.