If you or your kids have grown up in the U.S.A. in the last thirty years or so, you may remember a Saturday morning educational program called Schoolhouse Rock. This series of animated musical films covered subjects such as math, English grammar, science, and history. One of the episodes that I remember was called "Elbow Room", and it was all about westward expansion in the U.S. The main idea of the song was about how our need for more space drove us to explore new areas and push our national boundaries farther. It is an idea that is very familiar in our culture: We crave spaciousness.