I haven't followed Peter Attia for as long as I've followed Dave Feldman, and I've only read through the first of those links so far, but from what I have read so far, it seems to me like Dave's getting exactly what he's often been asking for: ideas that refute his own. As you say Rob, he's very open about being self-taught in all of this and not being qualified at all.

If there was any niggle between the two of them during the podcast itself (which I also haven't yet listened to) then that's unfortunate, but on the flipside, debates such as this where opposing points of view are directly discussed between the two sides can often be the most interesting, for the sake of advancing the overall discussion on the subject. The Swiss Re conference earlier this year was particularly interesting for this reason also.

This will definitely take a while to digest. Thanks for the links!