Canonical · Practical Wisdom · Book

Thinking, Fast and Slow

Daniel Kahneman · 2011

"Two systems drive human judgment — System 1, fast and intuitive, and System 2, slow and deliberate — and most systematic biases occur when System 1 quietly substitutes an easy question for the hard one actually being asked."

The idea

You know instantly that 2+2=4 and instantly that a stranger's face looks angry. You do not know instantly what 17×24 is — that takes deliberate work. Kahneman's whole book rests on naming that gap: System 1 (fast, automatic, effortless) and System 2 (slow, effortful, deliberate).

Why it works

The takeaway — recall it first

Base Rates

"Anchor to what usually happens before adjusting for what makes this case special."

Daniel Kahneman · BookContinue→