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Fluff article with misleading quote: "In this view, knowledge does not compensate for a declining adult intelligence; it is intelligence!"

This doesn't introduce anything of interest to people who already know that fluid intelligence decreases and knowledge can continue increasing.

Depressing.

Indeed. Besides, and anecdotally, I think it’s moreso give-a-f%%k that decreases rather than intelligence....

Anything that purports to measure “intelligence” will be confounded by give-a-f%%k. You can’t separate the two.

What if the article is aimed at people who didn't know that?

Then you got a decent introduction sprinkled with misleading commentary.