Frank: I've been listening to your podcast for months now and have learned a lot. Michael Kitzis has a December 2013 article on risk parity portfolio, says volatility is something that can and should be managed. And second, any opinion on Bill Bernstein's new book and recommendations of holding only short term treasuries? Frank: Well, these are two very interesting topics. So I'm glad you raised them. Let's talk about the Kitzis article first.