Comment Re:Not a problem... (Score 1) 326
I thought the one with the population density of Houston was more interesting as it implies a more livable density than Manhattan. A slight reduction in density might allow for grow-local kind of agriculture, too.
There might be actual incentives to encouraging the development of a megacity. The energy savings in transportation would be huge and there's probably a lot of other economies of scale to be gained. If other populated areas became equally less dense the environment might improve.
The downside is that all big cities have a gross aspect to them, especially poorer ones.