I am not a researcher in this field. I have read a lot about APOE4, and nearly everything I have seen about APOE4 makes it out to be the clearest of all predictors for Alzheimer's. I get that you're upset that I posted like I did, but I am not trolling. The point was that genetic causes are not an exceptional predictor for Alzheimer's. I had a hard time seeing how the best established predictor for Alzheimer's validates there being too many things labeled as Alzheimer's. If I had posted with a focus on some edge case, then it probably would have made more sense to me, but as I read it, it really seemed like a stretch.

Dropping this thread now. I am fine with being wrong, but my brief posting was not trolling.