Daniel Kahneman — Two Systems, One Mind, Constant Conflict
Core Mental Models
Model 1: You Have Two Minds — And the Wrong One Is Usually Driving
Kahneman’s central framework is deceptively simple and structurally important.
System 1 operates automatically, quickly, and without conscious effort. It pattern-matches, generates impressions, and produces intuitive judgments. It is always running. It cannot be turned off. And it is wrong in predictable, mappable ways.
System 2 is deliberate, slow, and effortful. It handles complex reasoning, checks System 1’s outputs, and is capable of genuine analysis. It is also lazy — it defaults to endorsing whatever System 1 produces unless there is a compelling reason to intervene.


