I watched the video but also, I watched Sinclair’s at Google Talk (one hour video) that is more comprehensive and I read his book. I think the Google Talk video was enough to get Sinclair’s theory of aging and etc. and the book was too much into the political aspects of people living longer and other matters. I like Sinclair a lot and follow his research.
I intermittent fast from time to time and I can do an endurance or HITT ride when fasting. In some respects I prefer the empty stomach.