“Do you know anyone in Budapest named Sinetar?” I asked. “Of course. They are a famous family,” she replied. “There’s Miklos, the film producer, as well as an engineer, and a psychologist.” “Well,” I said, “they are relatives of my wife.” Me, to Vivian, to a Budapest Sinetar, to my economist seatmate. Two degrees of separation. So far, I’ve never needed more than three to connect with a stranger.