The hard part of escrow is where it meets the real world. The ability to determine when an event has taken place in the real world, without being tricked, is ha

The hard part of escrow is where it meets the real world. The ability to determine when an event has taken place in the real world, without being tricked, is hard for automated blockchain agents. ("Smart contract" is a misnomer because they are pretty dumb and generally are not legally binding contracts.)