two-system reasoning

noun
UK /tuː ˈsɪstəm ˈriːzənɪŋ/
US /tu ˈsɪstəm ˈrizənɪŋ/

Thinking with two different parts of your mind: one fast and automatic, and one slow and careful.

Two-system reasoning explains why you can jump at a loud noise and also solve a tricky math problem.


OTHER MEANINGS

2. A model in psychology that separates quick, instinctive thought from slow, effortful thought.

The teacher used two-system reasoning to show how first impressions can be wrong.

3. A way of describing decisions made partly by habit and partly by careful analysis.

Buying snacks by habit versus comparing prices is an example of two-system reasoning.

4. A framework for understanding why people sometimes act before they think.

Two-system reasoning helps explain why we blurt out answers in a hurry.