Cognitive Cities

Not all Global Cities are created equal. We can hope the developing-world metropolises of the future will look a lot like the developed-world cities of today, just much, much larger -- but that's not likely to be the case. Today's Third World megacities face basic challenges in feeding their people, getting them to and from work, and maintaining a minimum level of health. In some, like Mumbai, life expectancy is now at least seven years less than the country as a whole. And many of the world's largest advanced cities are nestled in relatively declining economies -- London, Los Angeles, New York, Tokyo. All suffer growing income inequality and outward migration of middle-class families. Even in the best of circumstances, the new age of the megacity might well be an era of unparalleled human congestion and gross inequality.

Perhaps we need to consider another approach. As unfashionable as it might sound, what if we thought less about the benefits of urban density and more about the many possibilities for proliferating more human-scaled urban centers; what if healthy growth turns out to be best achieved through dispersion, not concentration? Instead of overcrowded cities rimmed by hellish new slums, imagine a world filled with vibrant smaller cities, suburbs, and towns: Which do you think is likelier to produce a higher quality of life, a cleaner environment, and a lifestyle conducive to creative thinking?