By Anthony M. Townsend. W.W. Norton, October 2013, 400 pages, $29. Brave New World Anthony Townsend started thinking about the intersection of technology and cities before the rest of us knew such a place existed. Back in 2002, when carrying a telephone in your pocket still felt slightly cutting-edge, Townsend, with the volunteer labor of civic hackers and donated equipment, was helping to blanket New York City's Bryant Park with 10 acres of free wireless Internet. Today, Townsend is a research director at the Institute for the Future and a fellow at NYU's Rudin Center for Transportation, and the rest