Cities are predicated on a set of trade-offs that no longer make sense. Middle-class people tolerate density, pollution, disease, crime, high taxes, and expensive housing to access superior employment opportunities. If comparable opportunities can be accessed without the above costs, many people will opt-out of the current arrangement.

Cities emerged to solve a set of problems that no longer exist. Physical goods are already made and traded elsewhere. Information and intellectual property can now be produced and exchanged online.