From what I can tell, physical therapy, GET, etc. as they are practiced seem to be based on a model that the patient doesn't want to exercise, and must be pushed. On the contrary, seems like every CFS patient I come into contact with has the opposite problem, and tries to do *too much* activity. That was certainly the case for me. I took me years (of push/crash) to learn that listening to my body was no longer optional for me, and I still struggle with putting it into practice consistently. I think a helpful form of "therapy" in CFS might involve teaching people that they have to listen to their bodies, and techniques for doing so.