“Musk talks about Mars as a lifeboat for humanity, which is among the very stupidest things that someone could say,” says Adam Becker, an astrophysicist and author of the book More Everything Forever, which outlines the messianic, sci-fi fantasies of the tech oligarchs. “There are so many reasons why it’s such a bad idea, and this is not about, ‘Oh, we’ll never have the technology to live on Mars.’ That’s not what I’m saying. What I’m saying is that Earth is always going to be a better option no matter what happens to Earth. Like, we could get hit with an asteroid the size of the one that killed off the dinosaurs, and Earth would still be more habitable. We could explode every single nuclear weapon, and Earth would still be more habitable. We could have the worst-case scenario for climate change, and Earth would still be more habitable. Any cursory examination of any of the facts about Mars makes it very clear.”