Why our IQ levels are higher than our grandparents' | James Flynn
Overview
Moral philosopher James Flynn explains the Flynn effect, the steady rise of IQ scores across the 20th century. He argues the shift reflects a move toward abstract, hypothetical thinking as cognitively demanding professions grew.
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HN recommends it as a clear explanation of why generations think differently and why IQ scores have risen.
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Video by TED, played through YouTube.
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