Blown away by the video Musk just posted! He’s built an electromagnetic mass driver on the lunar surface (basically a super-long electromagnetic railgun). It uses powerful electromagnetic forces to accelerate payloads (mainly AI satellites or structural components made from lunar regolith) directly to lunar escape velocity (~2.4 km/s). Key highlight: Completely eliminates traditional rocket fuel, achieving near-zero marginal cost for space launches! Why is the Moon the perfect launch site? Low gravity: Only 1/6 of Earth’s gravity Vacuum environment: Zero atmospheric drag, perfect for acceleration Local resources: Directly use lunar regolith to manufacture all payloads Pure electric drive: Powered by future lunar solar or nuclear power stations for full operation The grand vision behind it: This concept was originally proposed in the 1970s by physicist Gerard O’Neill in his space colonization theory. Now, Musk is planning to combine SpaceX × xAI × Optimus robots to turn sci-fi into reality! Ultimate goal: Build automated factories on the Moon to launch hundreds or even thousands of terawatt (TW)-level AI computing satellites into deep space every year. This would not only drive exponential growth in humanity’s computational power and energy utilization, advancing us on the Kardashev scale, but also create an ultra-low-cost supply chain for Mars colonization!