Looks like I found something more interesting to think about quicker than I had anticipated...
DSM defines dementia as an "overall decline in intellectual function".
World's dementia to double every 20 years
Well, now... What's twice 100%?
Incidentally, my opinion is that everybody's brains are still working just fine. It's just that there are any number of legal and societal rules (ie, written, customary and some that are, seemingly, secret (until one breaches them)), which forbid free thought. The "forbidden" areas of thought become stunted.
In fact, there is very little thought that is encouraged, it seems to me. The upshot is that the less one permits a person to think for themselves, the less they will think for themselves, the more inclined they will be to adopt other "sanctioned" views, and so on.
You've got the system you deserve.
And, yes, I refuse to address myself to any more of your piddling, monkey problems. Quid pro quo, Claris - did you think I wouldn't reciprocate your selfishness, too? Did you really think I would go on giving as you took, without acknowledgement? Fuck you, monkey people.