The feeling of getting an email! As if the ghost of a passenger pigeon had flown into your home and delivered it directly into your head, so swooping and unexpected and feathered was the feeling. How suddenly full you felt of white vapor. How you set your fingers on the keyboard to write back, and your fingers disappeared almost up to the first knuckle in those clattering beige keys—so much more satisfying than the shallow keys that came later, or the touchscreens that came even after that.