“So the next time you see a person walking, or jogging, or skateboarding, or riding a bicycle, take a moment to marvel not only at the beauty of the human body, but at the power of the unconscious brain that flawlessly orchestrates it. The intricate details of our most basic movements are animated by trillions of calculations, all buzzing along at a spatial scale smaller than you can see, and a complexity scale beyond what you can comprehend. We have yet to build robots that scratch the edges of human performance. And while a supercomputer racks up enormous energy bills, our brains work out what to do with baffling efficiency, using about the energy of a 60-watt light bulb.”