Earlier quoted context omitted.
> Concept #3 : Bitcoin utilized super-smart magic from several apparently-unrelated fields of CS to make the fantastical spreadsheet from concept Not really. Bitcoin (i.e. the original satoshi version) is hashcash, data structure merging and some game theory. Its an ingenious system, no doubt, but its ingenious because it put together some really well known building blocks in a smart way. It definitely did not use su…
Bitcoin effectively invented, completely from scratch with no precedents I'm aware of, a probabilistic Atomic Total-Order Broadcast algorithm, that's a pretty damn advanced Distributed Systems problem to me, and a solution that was never investigated in Distributed Systems orthodox literature before it as far as I know. So, in no way "really well known". And public-private crypto & hash pointer data structures are bo…
Yes, the new thing bitcoin invented was novel and quite interesting. I'm not sure that is the words i would use to name it, but the result still stands.
> Just because the public APIs of those things can be explained in an afternoon doesn't mean at all that they aren't advanced concepts
Of course not. They are advanced concepts because they are some of the most basic concepts in the field and used throughout the industry. Hash functions are so prevalent that we literally have special x86 instructions just to speed up calculating sha256.
Compare for example to things like ZK-SNARKs, or homomorphic encryption which are actually cutting edge cryptography.