West would sit at his desk and stare for hours at the team’s drawings of the hardware, playing his own mind games with the results of the other engineers’ mind games. Will this work? How much will this cost? Once, someone brought a crying baby past his door, and afterward it took him an hour to retrace his steps through the circuit design he had been pondering. Laughter outside often had the same effect, and once in a while it made his hands shake with rage—especially if he didn’t like the design he’d been staring at.

