“The way of going about trying to make something new or better often tends to polarize into one of two styles,” Teller says. “One is the low-variance, no surprises version of improvement. The production model, if you will. You tend to get ‘10 percent,’ in order of magnitude, kind of improvements.” “In order to get really big improvements, you usually have to start over in one or more ways. You have to break some of the basic assumptions and, of course, you can’t know ahead of time. It’s by definition counterintuitive.”
