101 urban economics. Economies of agglomeration is a powerful thing. Expensive cities are expensive because productivity and value generation there is much hig

101 urban economics. Economies of agglomeration is a powerful thing. Expensive cities are expensive because productivity and value generation there is much higher than elsewhere. The concentration of tech into few places is not a negative by itself. It's essential for better productivity and economic growth. Negative effects like expensive housing are failures in urban development. Economic activity is concentrating on large cities. This is global development. Cities have better productivity than, small towns. Bigger cities have even better productivity than normal cities. High-tech industry feels the need to concentrate even more. Just handful of cities become significant technology hubs. Currently the only way people can build a hivemind is to get together around best universities.