 No politician has ever stood up and said, I've got a grand vision for performance reviews, and this is how we're going to change the world. And facts that will hopefully help you catch your breath and look at this wondrous, weird world of ours in a slightly new way. The entire notion of how we interact with the street being changed by a marketing campaign feels amazing to me. That's coming up on Freakonomics Radio right after this hour's news.