I have known several young engineers who were sure they could design, build, and ride to victory revolutionary motorcycles. When I think of their stories, they are not different from any other addiction. At least two of them lost their marriages, then their jobs, and, finally, their will to do anything. In Tracy Kidder's book, The Soul of a New Machine, he describes a team developing a new computer in the intense early days of desktops. People fell into their work and management was delighted: around-the-clock development on salary—zero overtime! Great!