[leviself]

This is not exactly correct. Nobody had proposed a system that was as distributed as bitcoin until bitcoin came on the scene. Szabo wanted to use lots of timestamp servers and Finney wanted to rely on "transparent servers" that borrowed ideas from Trusted Computing so they could be audited.

To have a currency backed by processing power is not really an old idea either. It was at most 10 years old and nobody really had a good idea how proof-of-work (POW) could make a currency at that time (around 1999). I'm referring to the "Bread Pudding" variant of MicroMint (http://www.hashcash.org/papers/bread-pudding.pdf), not Cryptonomicon which doesn't really mention distributed computing or POW.