Sometimes I wonder what the percentage likelihood is that my kids will walk on another planet someday. I’m increasingly confident it’s not zero.
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Building an underwater city on this planet is 100x easier than building a city on Mars. Nobody expects a lot of people to move to an underwater city, even in 100 years.
Yeah but building an underwater city is mostly only useful insofar as it can serve as a test run for building a city on other planets. For humans to survive they must explore the cosmos, not the oceans.
