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Continue to ChatSkyscrapers -- but no sewage system. Meet a city run by private industry https://ideas.ted.com/skyscrapers-but-no-sewage-system-meet-a-city-run-by-private-industry/
Skyscrapers -- but no sewage system. Meet a city run by private industry https://ideas.ted.com/skyscrapers-but-no-sewage-system-meet-a-city-run-by-private-industry/