It is not absurd. For a start, it is not at all clear that Peter White has dropped muscle pain from his vocabulary. Secondly, he may not know or accept the symptoms that patients face and why they might stop exercising. So he may not see fatigue as encompassing all the other symptoms. Thirdly, as most people in this thread agree, fatigue is not an adequate term to describe the symptoms people with M.E. feel when they over-exert themselves so whatever meaning he has in his head for fatigue doesn't mean that we can't challenge it (when he is describing the illness to other professionals) to say that it does not adequately describe what people experience. And why they may stop exercising. You have shown little interest in criticising his ideas. When I see you criticising one of his papers, I might think you care about this issue.