Draft intro — edit before publishing
Kahneman’s System 1 and System 2 are easy to quote and hard to actually use. This review is less about summarising the book and more about what it changes in day-to-day product work.
I pull out the ideas that survived contact with real decisions — anchoring, loss aversion, the planning fallacy — and where they show up in metrics reviews, pricing, and how teams estimate.
There’s also an honest note on the limits: which findings have aged well, which to treat with care after the replication debates, and how to read the book as a practitioner rather than a fan.