The automobile thrived, of course --- in fact, it flourished --- in the 20th century. Especially in America, where entire cities were developed around the car. People bought houses, planned vacations, and chose their schools and supermarkets (and so forth) around their autos --- and we still do so today, obviously. But it seems highly unlikely that cars will have quite so great an influence on our lives (and on cities) in the 21st century. So, what's next?
