Almost as if he's thought about the thing he's devoted a good chunk of his life and wealth towards, here's Musk: “The point at which one says the goal is to ma

Almost as if he's thought about the thing he's devoted a good chunk of his life and wealth towards, here's Musk: “The point at which one says the goal is to make life multi-planetary, it means that we need to have a self-sustaining city on Mars,” Musk said. “That city has to survive if the resupply ships stop coming from Earth for any reason whatsoever. Doesn’t matter why. If those resupply ships stop coming, does the city die out or not? In order to make something self-sustaining, you can’t be missing anything. You must have all the ingredients. It can’t be like, well this thing is self-sustaining except for this one little thing that we don’t have. It can’t be. That’d be like saying, ‘Well, we went on this long sea voyage, and we had everything except vitamin C.’ OK, great. Now you’re going to get scurvy and die—and painfully, by the way. It’s going to suck. You’re going to die slowly and painfully for lack of vitamin C. So we’ve got to make sure we’ve got the vitamin C there on Mars. Then it’s like, OK, rough order of magnitude, what kind of tonnage do you need to make it self-sustaining? It’s probably not less than a million tons.” That’s not a precise number, of course. It’s a rough estimate. But Mars settlers will need vast quantities of stuff. The settlers will need to build an entire industrial base to mine the Red Planet, and there are many steps in mining. To make consumer products requires a huge infrastructure base to refine and shape materials. “I’ll probably be long dead before Mars becomes self-sustaining, but I’d like to at least be around to see a bunch of ships land on Mars,” Musk said. [0]: https://arstechnica.com/science/2020/03/inside-elon-musks-plan-to-build-one-starship-a-week-and-settle-mars/ https://arstechnica.com/science/2020/03/inside-elon-musks-pl...