4/9/2026 at 8:58:15 PM
I learned “crystallized intelligence” (what the author calls cached knowledge) and “fluid intelligence” (what he calls intelligence). https://en.wikipedia.org/wiki/Fluid_and_crystallized_intelli...It’s practically impossible to test the difference in people, because crystallized intelligence includes heuristics that affect problem-solving itself. But there is one, because two people with the same knowledge can score differently (e.g. with different thinking speed or effort).
EDIT: Technically crystallized intelligence may be only problem-solving heuristics, not all knowledge. But I don’t see the significance in the difference (e.g. between turning a word problem into a math equation then applying algebra, one of the Wikipedia examples, vs. “turning” the question “what is A?” into a lookup, then “applying” your previously-remembered A’s definition).
by armchairhacker