It isn’t just supply and demand. We look at the complicated history and skewed incentives that make “affordable housing” more punch line than reality in cities from New York and San Francisco to Flint, Michigan (!).

It was only in his late twenties that America’s favorite brainiac began to seriously embrace his love of trivia. Now he holds the “Greatest of All Time” title on Jeopardy! Steve Levitt digs into how he trained for the show, what it means to have a "geographic memory," and why we lie to our children.