A 15-Year-Old Built a Gearbox From Scratch. It Might Be the Most Important Thing on the Internet Right Now.
A 15-year-old built a functioning cycloidal gearbox from first principles — no AI, no shortcuts. While the tech world obsesses over prompts and agents, this kid reminded us what real engineering looks like: physical intuition, iterative failure, and the kind of embodied knowledge no model can replicate. The future belongs to those who still know how to make things with their hands.