““Milgram’s argument was provocative because he maintained that what got lost wasn’t random but precise: When people felt overloaded, he said, they restricted their social and moral involvement. “Overload is made more manageable by limiting the ‘span of sympathy.’ ” Milgram wasn’t out to enrage city-lovers the world over. He was concerned that the load-balancing trade-offs weren’t just operational; they were moral. If it is hard to doubt when you’re””