Massive cities are a destined trend under free market and Matthew effect. Skyscrapers are one of the solutions to massive cities, the others I can think of: *

Massive cities are a destined trend under free market and Matthew effect. Skyscrapers are one of the solutions to massive cities, the others I can think of: * Lots of cars * Reduce overall population * A powerful government that controls a lot and does city planning * A religion system to make people "do things for the greater good" you may not what any of them either. You can propose other solutions as well, feel free.