Elon wants chip fabs on the Moon now. Lunar soil is 20% silicon, he says, so you just mine it, refine it, stamp out solar cells and chips. Next level of the video game. His words. He's a walking 1954 Popular Science cover. "Moon Factories by 1975!" You can picture him red-faced at some poor SpaceX engineer, jabbing a finger at a render: "I saw this in a magazine! Why can't you guys do this?" Because the magazine was fiction, Elon. That's why. Boring question one: water. A single leading-edge fab burns through millions of gallons of ultrapure water every day, the kind filtered and polished until it turns chemically aggressive and rips ions out of anything it touches. Making it takes an industrial plant of its own. On the Moon you'd be chipping ice out of permanently shadowed craters at minus 230 C and feeding it through a purification chain that doesn't exist, powered by energy that also doesn't exist. Boring question two: shaking. Lithography machines sit on tuned vibration isolation, springs and masses and counterweights engineered around Earth's gravity down to the millimeter. Lunar gravity is one sixth of that. Every spring rate and tuned mass in the stack assumes 1 g, and the Moon has its own moonquakes nobody has fully mapped. So forget shipping a fab up there. You'd have to redesign the entire physics package from scratch, in a hailstorm of charged abrasive dust that eats seals and bearings for breakfast. And here's the part that makes it funny instead of just dumb. NASA studied all of this while Elon was still in college. Ignatiev and Freundlich published the actual paper in 1991: waste silicon from regolith processing, vacuum-deposited thin-film cells laid right on the surface. Serious work, fifteen years of it, and by 2005 the best anyone could promise was 5-8% efficient cells sprayed on melted moon glass, economical only at megawatt scale. Chips? Never in the plan. Not once, in thirty years of study. Then a 2006 follow-up walked back even the crude version, because melted regolith is too lumpy and dirty to make a decent substrate. The 2025 research gave up on purifying lunar silicon entirely and just ships the semiconductor layer from Earth. Thirty years of papers saying "hard pass" and this guy shows up with the crayon version of a 1991 NASA study, calls it visionary, and the fanboys clap like he invented the Moon. He isn't a genius ahead of his time. He's a man who skips the reading, and it shows every single time he opens his mouth just to pump his cult stocks.