Two Systems, One Career's Worth of Evidence

 

Thinking, Fast and Slow  —  Daniel Kahneman

Daniel Kahneman spends a career's worth of research condensing it into a single framework — System 1, fast and intuitive, and System 2, slow and effortful — and the many ways the first quietly misleads the second. The book is dense but not difficult; Kahneman is a patient explainer, and the experiments he chooses are selected as much for clarity as for significance.

Its range is genuinely wide: anchoring effects, loss aversion, the planning fallacy, the gap between the experiencing self and the remembering self. Taken as a whole, it is one of the more rigorous available accounts of why human judgment departs from rational models, written by one of the researchers who did the most to establish the field in the first place.

It is worth noting that psychology's replication crisis has since called some of the priming studies Kahneman cites into question, something he later acknowledged himself. That doesn't undermine the core research on loss aversion and heuristics, which has held up well, but it's a caveat worth carrying into the reading.

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