We are visiting Chicago in May. It has been four years. One morning walking along Michigan Avenue. The edge of skyscraper canyon. In the distance a little girl doing great big jumps. Forward backward over and over again. As I got closer, I realized that she was running into the wind and then letting it carry her back to where she started. I wondered which was more fun: the running or the letting it carry her back; the anticipation or the illusion.