“We went to the Acropolis [from London], had a three-course lunch, and everything came to 147 pounds each—about $160,” he recalled. “If I’d just bought a train

“We went to the Acropolis [from London], had a three-course lunch, and everything came to 147 pounds each—about $160,” he recalled. “If I’d just bought a train ticket to Athens, that alone would have cost about $200.” something something about externalities