JOEL GARREAU is a student of culture, values and change. The author of the bestselling "Edge City: Life on the New Frontier "and" The Nine Nations of North America," he is a reporter and editor at "The Washington Po"st, a member of the scenario-planning organization Global Business Network, and has served as a senior fellow at George Mason University and the University of California at Berkeley. He has appeared on such national media as Good Morning America, Today, The CBS Evening News with Dan Rather, NBC "Nightly News," ABC's "World News Tonight," and NPR's "Morning Edition" and "All Things