Doesn't have to be in space. A visceral visual version of it is easy to see in Brazil https://globalperipheries.wordpress.com/2011/06/30/the-favelas-and-gated-

Doesn't have to be in space. A visceral visual version of it is easy to see in Brazil https://globalperipheries.wordpress.com/2011/06/30/the-favelas-and-gated-communities-of-suburban-brazil/ https://globalperipheries.wordpress.com/2011/06/30/the-favel... But a version of this is present in America too. With areas without drinkable water, and areas w/o even a working sanitation system.