For instance, I got into thinking about personal computing from a child’s point of view, because of an encounter with Seymour Papert, the Logo [programming language] guy in the ’60s. I had heard about him, went to visit him in ’68. I read all his stuff. Papert was a mathematician. I have a degree in math and I could see what he was doing. It was like, “Holy shit. This is the best idea anybody’s ever had.” It was profound.