If you haven't been there, you should try TED. (Technology, Entertainment, Design.)
While math is not their greatest area of stength, they do have a few insightful talks. Try these. Also or alternatively how we learn, especially Stuart Brown on play. Although somehow they missed Nate Silver. Get more Nate at his excellent blog, which covers the intersection of statistics and politics.
My favorite is about the nature of genius and creativity, though I think she's off by a smidgen. (Needs God/Holy Spirit in there. But who doesn't?)
It's basically impossible to watch everything on there that's worth watching. So if you see something worth it, let me know!