Urbanization doesn’t require entire industries to be concentrated in a handful of cities. Wall Street and uncontrolled consolidation do that. The question is, can you achieve through public policy an economy where a large segment of jobs doesn’t involve delivering food to knowledge workers? I think you can, even today. Germany, for example, is quite urbanized, but far more decentralized (in terms of having many important large urban centers, plus many small urban centers) compared to say France or the UK.