I think an idea is f@<&led by design if it so quickly leads to an irreconcilable catastrophe. We already have mutable contracts. And we already have hard, distributed ledgers. If you're taking your contracting distributed ledger and making it optionally soft, I don't see a place for it other than for internal political purposes ("Look ma, I'm doing blockchain!"). That, admittedly, has value, but only so much.
