What we lost when everything became a phone, and when the phone became everything. In 2001, I took a train from Providence to Detroit. What should have been a 12-hour journey stretched into 34 when we got caught in a Buffalo blizzard. As the train sat buried in rapidly accumulating snow, bathrooms failed, food ran out, and passengers struggled to cope with their containment. I had taken along my minidisc player and just three discs, assuming I’d spend most of the trip sleeping. With nothing...