Richard Feynman and I had rather different styles of solving problems … so there was often a certain amount of “I don’t understand what you’re talking about” on both sides. We worked on quantum computing back around 1982 or so. He did hand calculation which I could never believe got the right answer, and I did computer calculations which he could never believe got the right answer… (In retrospect, I think we actually both got the right answers.) More here »