The computer can be used as a tool to liberate and protect people, rather than to control them.
Bitcoin seems to be a very promising idea. I like the idea of basing security on the assumption that the CPU power of honest participants outweighs that of the attacker. It is a very modern notion that exploits the power of the long tail.
Since we're all rich with bitcoins ... we ought to put some of this unearned wealth to good use.