these developments and can pick [the type of consumers they will] serve, what about homeless people? Where are homeless people going to wind up? They're going to wind up on the streets of San Francisco or somewhere like that. Because if you want to buy into one of these residences, they don't want you unless they can ensure you can pay. You're going to go through financial screening. You're going to have to prove you can afford to live in the place. People who can't are going to wind up not getting served. If you try to do housing through this type of market, there's going to be a market failure that's probably going to be quite costly for governments." Segmented Democracy: "Douglas W. Rae has an essay titled Democratic Liberty and the Tyrannies of Place, which points to the fact that we're becoming an increasingly segmented democracy. That is, people tend to spend time around people that are like themselves. Of course, CIDs greatly facilitate that because people will sort by income or go to the ones in Florida, often by ethnic group - into these relatively homogenous certainly financially homogenous, groups. We know from Cass R. Sunstein that like-minded people, if they talk to one another, tend to become more extreme. So if we get an increasingly segmented democracy of people only hanging around people who look and talk like themselves, this will reinforce a lot of the divisions contributing to the polarization of the electorate. This reinforces the "out of sight, out of mind" mentality about people not like themselves." References Living arrangements Real estate in the United States Condominium