Scott Rosenberg interviews Steven Johnson about his latest book, The Ghost Map. I liked Johnson’s thoughts on the evolution of popular theories and the role of public intellectuals. “Part of what you’re supposed to do as an educated intelligent person is try and figure out the giant weird invisible elephant in the room that nobody’s talking about — the thing that everybody’s missing. But it’s hard. They’re blind spots for a reason.” Reminds me of Mises’ thoughts on ideas.