In 1994 I reinvented myself. A physicist and engineer at General Atomics, I was part of an internal think tank charged with answering hard questions from any part of the company. Over the years, I worked on projects as diverse as cold fusion and Predator drones. But by the early 1990s I was collaborating frequently with biologists and geneticists. They would tell me what cool new technologies they needed to do their research; I would go try to invent them.