If suburbs were about crime, people would merely have moved to them, as they existed (just using transit, not cars).<p>They wouldn&#x27;t have set up command and control economy experimental land use policies and subsidies that had never been done before if they just wanted breathing room or to be away from the city. That sort of life could already be had, but that wasn&#x27;t enough.<p>Those other people could flee crime too since they could afford a train ticket, and you wouldn&#x27;t want one of those others in your neighborhood, would you? Of course not. We&#x27;ve got to set things up so they don&#x27;t follow us. What don&#x27;t they have? Cars. If we build a new society that forces everyone to have cars, &#x27;they&#x27; can&#x27;t follow us.