This guy, Steven Colatrella, has drafted a new constitution for the world that abolishes nation-states in favor of city-states. It also abolishes debt, credit, wages, and big business. In short, it sounds like a return to the original concepts of idealized socialism or communism. I don’t know about all that, but there might be a few ideas worth pulling out. I do like the idea of treating metropolitan areas as our society’s core economic and social units – clearly that is what they already are, and our political system is not consistent with that. Another idea that is somewhat interesting is that each city has its local currency, with a universal currency available but used only in transactions between cities.