Alex Beinstein was, like many other a fidgety and overconfident undergraduate who’d sought my company in this way, considerably to the right of center—a libertarian, he told me. . . . Later, as these kids sometimes do, he got back in touch. But something had happened in the interim. That something, in fact, seems to be happening a lot: kids I knew who were conservatives when they lived in the ivory tower were now liberals. The real world has made them that way.