Yes, we have laws. When should the law intrude on the private transaction of two parties? Typically, the law holds both parties to their contractual agreement. If those two parties have contracted to abide by the output of an algorithm, can the law distinguish good faith manipulation of algorithmic inputs to benefit oneself from bad faith manipulation of algorithmic inputs to benefit oneself? Given that the whole point of a smart contract is to encode the terms of the agreement as code, when is it appropriate to step in and alter that agreement?