Today I took my thirteen-year-old son to the orthodontist. This particular office is the hub for thousands of neighborhood kids caught in the trappings of orthodontia. The waiting area is teeming with parents and teens; the office is an assembly line of open mouths and flailing arms. Surveying the room, I was struck by this: every person—adult or child—was on his or her phone. I observed this for a solid fifteen minutes anticipating some interaction. There was none. Now that modern technology has made having a cell phone the equivalent to a portable computer, it is no wonder these devices have become extensions of our limbs.