Self-driven cars, the futurists believe, could be like a universal and less exploitative version of Uber—the click of an app summons the nearest free automated car. No more private cars—and this is the big hypothetical step—could see the number of vehicles in most cities fall to 10 percent or 15 percent of what it is now. Bingo—lots more space in which to move, and to live, and to cycle.
