“You learn from [negative feedback]. Often it starts a line of development: Well, yes, that person said they want a light vacuum, which is impossible, because motors are very heavy. So you say, ‘We might develop light electric motors—no one’s ever done it before; we must do it.’ About eighteen years ago, we set off on that journey. It took us fifteen years before we launched a revolutionary small, light motor. Negative feedback is really interesting. I enjoy it in a masochistic way.”

-James Dyson, in Bloomberg Businessweek

Illustration of James Dyson and his trusty Air Multiplier by Adrian Tomine for The New Yorker.