Didn't see anyone mention this during the weekend... there's a 46-minute audio interview with Richard Heinberg talking about The Oil Depletion Protocol on the Financial Sense Newshour.
I'm coming more and more to the conclusion that Heinberg is no longer relevant.  He is pushing an idea whose time hasn't come, and may never come. In fact, I'm not even convinced it is the best approach to PO/energy.