Are the Tau and Beta theories just cover stories to keep the con going as long as possible?
Well, IMO anyone who has ever been handed a real problem which requires sound science knowledge and a desire(motivation) to solve it would have to wonder as you have. Although the thinking (bundles of sticky stuff preventing cognitive blah, blah) all seems to work initially it quickly falls apart. The causative relation fell apart 30+ years ago when patients brains who had no AD symptoms were found to have amyloid plaques. Have never seen any assessment on how that could be true that held water. The number of clear contradictions stopped it for me as it should anyone. At least get a plausible explanation on how that happens. The fact that huge investment are made to develop and apply MRI devices/Life-science trace materials/clinical researchers who get paid a lot to keep the story alive, and so forth. All based on plaque. I spent many/many years working for a company that makes the H/W-S/W-ancillary support devices. Hospitals and clinics build and keep large facilities to use the MRI/scanning equipment, and on it goes. It is a massive business w/many related interests. Of course that investment must be sustained somehow.
I spent 30+ years investigating everything from FDA consent decrees, to AE follow up, product/process certification, warning letter follow up and much more. Incomplete problem analysis and solving is common in the medical field. As mentioned here many times, it's almost like we are supposed to accept the outcome, even when the proposed solution is clearly incomplete. You have to not want to see the issues. The one possibly indicative example I see often that makes me wonder is the FDA food/product recalls which are announced a few days after the suppliers...USE BEFORE DATE...has lapsed. HUH??REALLY?
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