@gamanu95: " so you do not think age (less collagen and elasticity, reduced lean muscle, weaker bones, increased overall frailty, decreased speed/vision/cognition, reduced cardiopulmonary efficiency, etc.) Is going to give Jake a significant edge?"
In most cases, yes. I still don't think Paul would have won if Tyson hadn't phoned it in. I can't really tell if his lackluster performance was because he didn't care, or because he didn't have it in him. I know that if the Tyson who performed like he did in the last practice I saw had showed up to this fight, Paul would not have won.
Before the fight, I was discounting the possibility of it being rigged. Now I'm not at all sure there wasn't some arrangement.