Dave Duffield is the software industry's eternal teenager. Consider the way that the 73-year-old smashed up his first company car. "It was in the 1960s," Duffield ruefully tells me. "I was a young techie in a hurry." After quitting a safe job at IBM, he hawked his own software for scheduling final exams more efficiently, zooming between college campuses in a Porsche Carrera loaded with punch cards in the back. At least, that was the plan for a few weeks. "I was in Binghamton [N.Y.] on a freeway exit," says Duffield. "It was foggy, and the tire slipped. I went through a telephone pole."
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