I walked behind her, the city swirling in the human ejecta that had arrived predictably from the office buildings as the workday drew to a close. She brushed awkwardly against the tide of pedestrian traffic, distracted, her honey brown hair swinging. The leather satchel hung heavily from her shoulder, making the task at hand that much more difficult. Her secondary goals were to catch the train, to cross the busy streets, but her primary focus right now, in the bustle of the busiest city street was her smartphone. She held it out like a compass, engaged in a pressing conversation. I saw the blurs of blue and green as she dodged the passers by - the telling hues of the Android SMS app. I stared at her golden hoop earring, mesmerized, as it swayed all of its own accord with the rhythm of the street. It seemed almost comical, to watch somebody furiously engaged in texting, in this peculiar form of social interaction, in the middle of a million people. I began to w...