“What would I really miss if I didn’t see a dozen photos of a friend’s vacation, or the latest reviews of hyped-up novels, or which viral arguments were dominating Twitter at a particular moment? In the context of my day-to-day, physical life, these bits of content had almost no impact. I feared the loss of some connection, but that connection is, after all, more ambient and less direct than chatting with neighbors when I walk my dog.”