>The point is that crypto can't get rid of the issue of trust. At some level, there has to be some level of trust in order to perform a transaction. This is ge

>The point is that crypto can't get rid of the issue of trust. At some level, there has to be some level of trust in order to perform a transaction. This is generally true however there are some exceptions. You can trustlessly trade Bitcoins for solutions to particular problems e.g. the preimage of a particular hash. This can be extended to a much larger class of problems with Zero Knowledge Contingent Payment (ZKCP).