Wisdomly

Thinking, Fast and Slow

Daniel Kahneman · 2011 · 10 ideas · 10 min

Your mind runs two systems — a fast, automatic storyteller and a slow, lazy auditor — and most errors happen when the storyteller answers questions meant for the auditor.

Why this book

Kahneman spent a career (and won a Nobel) demonstrating that human judgment doesn't merely make mistakes — it makes predictable mistakes, the same ones, in the same directions. The book organizes that career around a metaphor: System 1, fast and effortless and always on; System 2, slow and effortful and mostly asleep.

Read it to install a healthy suspicion of your own certainty — especially the certainty that feels most effortless.

Who should read it

Anyone who makes decisions under uncertainty for a living — investors, doctors, managers, negotiators — will find a working vocabulary for mistakes they've already made but couldn't previously name. It also rewards general readers willing to sit with the uncomfortable evidence that their own intuitions are less trustworthy than they feel.

About the author

Daniel Kahneman was an Israeli-American psychologist who, along with his longtime collaborator Amos Tversky, founded the field of behavioral economics. He was awarded the Nobel Memorial Prize in Economic Sciences in 2002 for this work, despite never having formally trained as an economist.

The ideas

cognitive-biasdecision-makingbehavioral-economics
About this summary. Wisdomly re-expresses a book's ideas, arguments, and structure in our own words — nothing here is the author's text. Summaries are a map, not the territory: if the ideas land, the full book is worth your money and your evenings.