Okay, last one. Most concise counter-argument: http://en.wikipedia.org/wiki/Brute-force_attack#Theoretical_limits http://en.wikipedia.org/wiki/Brute-force_attac

Okay, last one. Most concise counter-argument: http://en.wikipedia.org/wiki/Brute-force_attack#Theoretical_limits http://en.wikipedia.org/wiki/Brute-force_attack#Theoretical_... Derived from the Landauer limit.