Which setting do you think is more likely to produce a good idea? A quiet room in the library, the auditorium where a prestigious lecturer holds the floor, or a crowded coffee house in the late afternoon? If you guessed the library, you’re to be forgiven for imaging that the good ideas are solitary achievements. If you imagined it was the lecturer, you can be excused for thinking we get our best ideas from experts. But if you instead suspected that it might be the crowded coffee house, then you already know something essential about creativity. It is largely about connection and conversation. Creativity, that is, emerges not from...