One of the sillier aspects of criticism of (say) Mars missions is applying terrestrial opportunity costs logic (if you spend $X on A, you can't spend it on B).
Earth's economy stops at GEO. Only hunks of metal go beyond. All economic impact, good or bad, REMAINS ON EARTH
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Like I said I don't think opportunity costs apply in that way to humans. I make no assumption abou you
End of conversation
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