Yet there were moods in which Shannon’s cheeriness over the future of machines curdled into misanthropy. “We artificial intelligence people are insatiable,” he once wrote. Once machines were beating our grandmasters, writing our poetry, completing our mathematical proofs, and managing our money, we would, Shannon observed only half-jokingly, be primed for extinction. “These goals could mark the beginning of a phase-out of the stupid, entropy-increasing, and militant human race in favor of a more logical, energy conserving, and friendly species—the computer.”