I'm a big fan of walking. I like it for the health benefits, the freedom to explore, and the simple luxury of being able to walk to things. In fact, it's an important housing prerequisite for me: can I walk to stuff? But as we often talk about on this blog, the ability to do this depends largely on the prevailing land use patterns, the overall built environment, and, to a great extent, when a neighborhood was built. It is commonly argued that the "best" neighborhoods were all built before the...