Our world is run by cities. Not only are they the locus of economic and political power, entertainment, and media, but they are also growing. And fast. Yet, there will always be a demand for a different lifestyle - away from the city. Today, we have suburbs and the countryside. But could there be a new type of residential area addressing a gap not yet filled? Welcome to high-tech eco-villages.

You can always dream big. But when you're a billionaire, you get to put plans into action immediately. That's what Jeff Bezos has been doing for almost 2 decades with Blue Origin. Recently, he unveiled his plans for the future of humankind, and they involve living space colonies, each 1-million plus strong.