5min chapter

Making Sense with Sam Harris cover image

#291 — Where is Happiness?

Making Sense with Sam Harris

CHAPTER

Is There a Difference Between Fluid and Crystallized Intelligence?

S Sik: We did not actually describe the difference between fluid and crystallized intelligence. So tell me, what are your thoughts on that topic? S Sik: People get better at things through their twenties and thirties. And weirdly, it tends to pique in your late thirties or early forties, and then it tends to decline. But there's a second intelligence curve behind it that doesn't reward the same things. The great news is that crystallized intelligence increases through your forties and fifties and even sixties - and stays high in your seventies and eighties.

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