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  Lines I underline from the book: [Geoffrey Hinton] was the great-great-grandson of both George Boole, the nineteenth-century British mathematician and philosopher whose "Boolean logic" would provide the mathematicak foundation for every modern computer, and ... When asked about Rumelhart, Hinton liked to recall the time they were stuck listening to a lecture that held absolutely no interest for either of them. When the lecture ended, as Hinton complained that he had just lost an hour of his life, Rumelhart said he didn't really mind. If he just ignored the lecture, Rumelhart said, he had sixty uninterrepted minutes to think about his own research. For Hinton, this epitomized his long-time collaborator. Hinton liked to say that "old ideas are new" - that scientists should never give up on an idea unless someone had proven it wouldn't work. When anyone asked Feynman to explain the work that won him the Nobel Prize in terms the layperson could understand, he,...