Andrew Sullivan: Society is dead, we have retreated into the iWorld:
Even without the white wires you can tell who they are. They walk down the street in their own MP3 cocoon, bumping into others, deaf to small social cues, shutting out anyone not in their bubble.

Every now and again some start unconsciously emitting strange tuneless squawks, like a badly tuned radio, and their fingers snap or their arms twitch to some strange soundless rhythm. When others say “Excuse me” there’s no response. “Hi”, ditto. It’s strange to be among so many people and hear so little. Except that each one is hearing so much.