It's really hard to design products by focus groups. A lot of times, people don't know what they want until you show it to them. As Henry Ford said many years earlier: "If I had listened to my customers, I would have built a faster horse." Inventions in general express Shannon entropy. They come from the supply side.
George GilderFrom the equilibrium and spontaneous order of Adam Smith and his heirs, from invisible-handed markets and perfect competition, supply and demand, and rewards and punishments, I was pushed to theories of disequilibrium and disorder, and information and noise, as the keys to understanding economic progress.
George Gilder