“Gates was, after all, a serial stealer of computer time, and he had manipulated passwords to hack into accounts from eighth grade through his sophomore year at Harvard. Indeed, when he claimed in his letter that he and Allen had used more than $40,000 worth of computer time to make BASIC, he omitted the fact that he had never actually paid for that time and that much of it was on Harvard’s military-supplied computer, funded by American taxpayers.”