Jokodo
Veteran Member
In basically all those scenarios, the earth after the catastrophe is still a more livable place than Mars will ever be. The worst case scenarios basically say "the air outside an hermetically sealed bunker becomes permanently unbreathable" - well, the air on Mars already is. An underground bunker city on Earth with sufficient supplies to last for several years - available at a tiny fraction of the cost of an underground colony on Mars, using tech available here and now - is a better place to hide out, and when we crawl back out after weeks, months or years, chances are Earth is still the better place to be.But in basically all of those scenarios on Earth wouldn't people on Mars survive (if there were people on Mars)?Maybe we will die due to some catastrophe - an asteroid strike, or the evolution of a unicellular species that drops the oxygen level below what we can survive, or that turns oceanic chloride into chlorine and gasses us to death, or a supervolcano eruption, or a global thermonuclear war, or the collapse of the ecosphere due to our burning of fossil fuels, or any of a million other scenarios that could kill us at a stroke.
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