omg - i swear i did not read cryptonomicon before thinking that a pda card game, with a secret secondary plan to create a digital cash system, was a cool idea.

"'I note that you have made the transition to the card-based RPGs,' Randy says.

'Oh yeah! It is so much better than the old pencil-and-paper way. Or even computer-mediated RPGs, with all due respect to the fine work that you and Avi did. What are you working on now?'

"Something that might actually be relevant to this.' Randy says. 'I was just realizing that if you have a set of cryptographic protocols suitable for issuing an electronic currency that cannot be counterfeited - which oddly enough we do - you could adapt those same protocols to card games. Because each of these cards is like a banknote. Some more valuable than others.'" Cryptonomicon, p649