[cameronh90]

"Probabilistic" markets will be (and to some extent already are) re-invented on-top of the blockchain.

Current generation cryptocurrency blockchains are more similar to the post-trade settlement system, where everyone figures out who owns what after-the-fact.

Maybe smart contracts will change that, but performance will need to get a lot faster and I'm not sure how feasible it is to implement a full exchange on top of (for example) Ethereum. Would love to see it though!