The Terafab is going to become the largest and most valuable building on Earth by a long shot. This is so much more than just another semiconductor fab. It’s going to be @Tesla, @SpaceX, xAI, and Intel building what will become the most important AI manufacturing complex EVER created. The goal that Elon has for this is staggering… Produce more than 1 terawatt of AI compute every year - roughly 50× today’s global AI chip output. That’s the kind of scale you would only build when you believe the future needs far more compute than the world can currently make. About 25% of that output is expected to power Tesla’s Optimus robots, Full Self-Driving vehicles, and Cybercabs. The other 75% is aimed at SpaceX’s vision for solar-powered AI satellites and orbital data centers, where compute will not be limited by Earth’s power grid. Also, instead of spreading chip design, mask making, fabrication, memory, advanced packaging, and testing across multiple locations like the industry does today, the Terafab will bring nearly everything under one roof. That means engineers will be able to design a chip, build it, test it, improve it, and repeat the process much faster than the rest. The full complex is expected to exceed 100 million square feet, making it larger than any semiconductor facility ever attempted. The first phase alone represents a $16.8 billion investment, with long-term plans most likely reaching far beyond that. Elon has said it plainly… existing chip suppliers simply can’t produce enough AI chips for where Tesla and SpaceX are headed. If Optimus scales to millions, and eventually billions, and SpaceX starts deploying AI data centers in orbit, the world will need an entirely new level of manufacturing capacity. That’s what Terafab is really about. History will remember it as the factory that powered the age of intelligent robots, autonomous transportation, and AI infrastructure in space.