The guy who runs Nvidia and the woman who runs AMD are cousins. Today the President handed them both the National Medal of Science on the same stage. Jensen Huang's mother is the younger sister of Lisa Su's grandfather. Their family patriarch in Taiwan had 12 children, and two branches of that tree ended up running the two companies that make the chips the entire AI boom runs on. They didn't even grow up together. Jensen's parents sold nearly everything they owned to send him to boarding…