As reported here:
Jobs usually had little interest in public self-analysis, but every so often he’d drop a clue to what made him tick. Once he recalled for me some of the long summers of his youth. "I’m a big believer in boredom,” he told me. "Boredom allows one to indulge in curiosity," he explained, and “out of curiosity comes everything.” The man who popularized personal computers and smartphones — machines that would draw our attention like a flame attracts gnats — worried about the future of boredom. “All the [technology] stuff is wonderful, but having nothing to do can be wonderful, too.”