Can't someone luck out and . . .
. . .Finding a collision is about as likely as being struck by lightning while taking a crap every year for 17 years in a row. . .
also, this:
http://i.imgur.com/VjtG3.jpgHmm, what about future quantum computers? Wouldn't they theoretically be able to brute-force 256-bit keys using not such ridiculous amounts of energy?
(Of course when such quantum computers are available, the global banking system will probably be in a much worse situation than bitcoin, but would be nice to know if bitcoin is at least somewhat "quantum-proof"...)
