Walking, talking, laughing, sneezing, coughing, running, looking, pressing, pushing, yelling, holding, pulling, arriving, leaving, guessing, shouting, moving, moving, moving. A sense of urgency floods the streets like wild light. Known and unknown sounds travel distances through the air and collide into blasts of excitement and adventure. Traffic flows endlessly through the intersections, carefully watched by billboards and office windows. A pedestrian crossing screams stop as a red light breaks the momentum and a few seconds are spared for reflection and a sigh of solitude.