This is a fascinating article, thanks for posting. It's unfortunate that so many U.S. cities (and some abroad) were designed and built in a way that results in

This is a fascinating article, thanks for posting. It's unfortunate that so many U.S. cities (and some abroad) were designed and built in a way that results in them being unwalkable. I'm really interested in seeing how cities respond to this, and whether or not these cities will start to become more dense in order to possibly improve efficiency, or whether they'll just continue to sprawl because it's the easiest way to grow.