My grandpa never graduated high school. He retired from a steel mill in the mid-70s. He was uneducated, but he was a voracious reader. I remember going through his bookshelves of paperback sci-fi novels, smelling musty old paper, pulling Piers Anthony and Isaac Asimov off shelf and promising to bring them back. I was fascinated by robots that could think and act like people. What happened when they died?