The fundamental existential question is whether humanity becomes sustainably multiplanetary before something happens on Earth to prevent that, for example nuclear war, a supervirus or population collapse that weakens civilization to the point where it loses the ability to send supply ships to Mars.
No mention of climate change which is gonna kill us way before that. muh population collapse we need more white people!
No mention of climate change which is gonna kill us way before that. muh population collapse we need more white people!
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We are getting population collapse anyway in 50-100 years, and this is insufficient time for establishing a self-sufficient colony on Mars.