Brian Eno, interviewed by Ezra Klein, recalled a moment some years ago when he was talking with the engineers at Yamaha about one of their synthesizers. Like most synthesizers, this one came with a series of preset tones but was also programmable, and Eno told the engineers that they should make the synthesizer easier to program. They replied that nobody ever programs the synthesizer, they just use the presets. There would be no value for Yamaha in investing the thought and effort into making...