“Bypasses are devices that allow some people to dash from point A to point B very fast while other people dash from point B to point A very fast. People living at point C, being a point directly in between, are often given to wonder what's so great about point A that so many people from point B are so keen to get there, and what's so great about point B that so many people from point A are so keen to get there. They often wish that people would just once and for all work out where the hell they wanted to be.” - Douglas Adams, Hitchhiker's Guide to the Galaxy We all have a need to get from point A to point B sometimes. If point A is home, we need food, we need clothing, we need to go to work. All of these things require some kind of transportation. And even if it isn't you that gets transported, the items in question need to be transported since they don't all originate at point A. It would nice if our houses could produce all the goods we could possibly need, though...