“Thinking small is the next logical step in America’s urban renaissance. When cities really started changing 10 or 15 years ago, the economy was booming and the Internet was a newfangled gizmo. Today, cities have less money but more ways to communicate, two conditions perfectly suited to more focused, low-cost planning. Now you can home in on a specific neighborhood (or even just a few blocks), find out what the residents there want or need, cheaply implement it on a trial basis, and make it permanent if it works.”