As a Detroit http://goo.gl/hyOts suburbanite, Clark's prediction certainly seems to be very relevant for me right now.

I live in a relatively sparsely populated area. I often work remotely. When I do go into the office, I'm headed for another suburb. I'm about as removed from urban life as you can get, and still have a major hospital within 5 miles. I've not had to visit downtown Detroit since I worked their 11 years ago.

I much prefer the deer eating our hastas in the garden vs. drive-by shootings in the next neighborhood.

If Clark's prediction isn't true yet, I do see a time when it would be more typical.