If the causal mechanism in Alzheimer's is not clear, what's to say it isn't about 20 or 20000 different things going wrong in ways and proportions which are ver

If the causal mechanism in Alzheimer's is not clear, what's to say it isn't about 20 or 20000 different things going wrong in ways and proportions which are very specific to each individual? I'm not criticizing basic research, which I consider immensely useful. Rather, the way we expect for it to become magical drugs. The peak of contradiction is posing that humans are inscrutable creations of God who wills us to age and die miserably, and in the same breath also wanting to have a neat repair handbook indicating fixed doses of the same drugs for each symptom--as if we were some cheap car model that comes without spares nor OBD port, and that it's only serviced at the end. I think we need to solve that.