Is it a possibility that megacities are too big and fast moving to foster any kind of community?
Megacities that house populations over 10 million people, such as Tokyo, Shanghai, Jakarta, Delhi, Seoul, Sao Paulo, Lagos, London, New York, are in a constant state of flux. People, businesses and trends come and go at an astonishing rate. It could be argued, based on homo-sapiens inclination to form small communities in the wild natural world, that these populations are just too large to foster any meaningful feeling of community spirit.
Tokyo, the world’s largest and most heavily populated urban area, is a good example. Here the urban areas go through 30 year redevelopment cycles, buildings usually being removed and completely rebuilt rather than regenerated or preserved in any way. However, this often takes the form of top down regeneration that comes from more of an urban redevelopment approach, but as a result areas are constantly changing. This coupled with a great transport infrastructure means that the area you live in is less of a problem, and individuals choose to live is less of an issue.