The only way to build economical and cultural (by which I mainly mean education) wealth is by exponential growth. There are no short-cuts. Invest (=risk) a too

The only way to build economical and cultural (by which I mainly mean education) wealth is by exponential growth. There are no short-cuts. Invest (=risk) a too large amount of capital and you get a collapse. Invest too little, you go nowhere. Put in too much capital from the outside and it can't be used efficiently. These kind of charter cities are essentially colonialism. They are supposed to run on a legal system imposed from another country. Which doesn't work without a large contingent of police officers, judges, civil servants from that country. Because, again, just hiring local people doesn't work because as a population they didn't grow into that mindset yet (but they might in the future). And good luck defending a wealthy city, or even a shabby one with wealthy foreigners, in Somalia from Al Shabab.