[jasonzemos]

You're right that sha256 will one day be in jeopardy, but there's no reason why the system can't update itself well before then. If sha256 is broken, all it takes is for people to update their clients and only start accepting sha3, etc.

[discover]

Previously, breaking a crypto was nice, but not instantly and anonymously profitable as it is with Bitcoin. It will be interesting to see how it plays out when it happens.