The judge has no say. The smart contract is collateralized ahead of time. Both parties lock sufficient value in the contract to make sure that the payment can b

The judge has no say. The smart contract is collateralized ahead of time. Both parties lock sufficient value in the contract to make sure that the payment can be made good. After the value is locked in the contract, there's nothing any fiat judge on Earth can do to reverse the smart contract, short of shutting down the entire blockchain. I agree that you have to trust the software underlying the contract. But it's highly likely that you'll use an open standard that's battle tested across time. Typically it's much easier to develop trust in software than it is institutions. Every day you trust your life, privacy and money to open software standards across a wide variety of contexts.