I used to live at the crossroads of the world. Now I am at another crossroad. It seems that air traffic out of Reagan and Dulles and BWI and Phi all cross Delaware. The clouds move fast. They change like the weather. Wait a minute or so it will look different. Every once in a while, the jet trails cross over in a great pattern. Everyone is headed somewhere. There’s an app that lets you point your phone at the trail and it will tell you the flight and destination of the plane that made it. TMI, I just like the pattern. Simple.