Some top level athletes who have talked about having chronic fatigue: Linley Frame, Anna Hemmings, Michelle Akers, Marie-José Pérec, Sarah Storey, Amos Mansdorf, Robin Söderling, Peter Marshall, Billy Garton, Richie Barnett, to David Provan, Olaf Bodden, Martin Phillips, Andy
Your original posts being devoid of nuance is what prompted my response. “Never heard of…” and the subsequent implication “because external output outweighs any diet” so deeply lack nuance, thoughtfulness and grounding
It's hard to separate SF folks drinking their own kool-aid from the fact that they are closer to the frontier. When I get longer estimates, it's usually from academics that aren't at frontier labs, so they are drinking less kool-aid but they are also seeing less.