It’s one thing to have a successful book, and Freaknomics, the 2005 book Stephen Dubner co-authored with economist Steven Levitt, is very successful, with million of copies sold and translated all over the world. But it’s rare that a successful book becomes a radio show, a podcast and a small cottage industry. And it’s even rarer that it becomes part of our vocabulary.Stephen Dubner has many qualities. He’s smart. He’s funny. And he’s a terrific writer. He’s made a living pursuing his passion, trying to find out how the world works, or doesn’t work, or maybe doesn’t work how most of us think it does. At his core, Stephen Dubner is curious.Endlessly curious.