You are going to get dumber as you age, no question. But the last peak-smarts thing you can do is choose your downhill path cleverly.
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Is it possible tell when you're at "peak-smarts" before you've passed it?
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Fluid intelligence (FI) soon falls, but crystalized intelligence (CI) rises for much longer. So switch to tasks that emphasize CI.
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Based on what Michael Maboussin says here youtu.be/1JLfqBsX5Lc?t= the way to do that is to pick the best heuristics.
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How do you do that? By making your beliefs pay rent, I suppose. Test against experience and evict freely, often.




