“We assume that anyone who rejects a new tool in favor of an older one is guilty of nostalgia, of making choices sentimentally rather than rationally,” Nicholas Carr wrote in The Glass Cage. “But the real sentimental fallacy is the assumption that the new thing is always better suited to our purposes and intentions than the old thing. That’s the view of a child, naive and pliable. What makes one tool superior to another has nothing to do with how new it is. What matters is how it enlarges us or diminishes us, how it shapes our experience of nature and culture and one another.”