they'll know how to do it. >> know-how of the humankind runs in geoffrey hinton's family. thematician george boole who invented the basis of computing, and george everest, who surveyed india and got that mountain named after him. but as a boy, hinton himself could never climb the peak of expectations raised by a domineering father. >> every morning when i went to school, he'd actually say to me as i walked down the driveway, get in there pitching, and maybe when you're twice as old as me, you'll be half as good. >> dad was an authority on beetles. >> he knew a lot more about beetles than he did about people. >> did you feel that as a child? >> a bit, yes. when he died, we went to his study at the university, and the walls were lined with boxes of papers on different kinds of beetle. and just near the door there was a slightly smaller box that simply said "not insects." and that's where he had all the things about the family. >> today at 75, hinton recently retired after what he calls ten happy years at google. now he's professor emeritus at the university of toronto, and he