Summary and Analysis of Thinking, Fast and Slow

The sunk-cost fallacy is a related issue in which a plan that should be abandoned is pursued because no one wants to admit defeat.

You may not know that you are optimistic about a project because something about its leader reminds you of your sister, or that you dislike a person who looks vaguely like your dentist. If asked for an explanation, however, you will search your memory for presentable reasons and will certainly find some. Moreover, you will believe the story you make up

Another common System 1 error is mistaking plausibility for probability.

Mood affects intuition, because good mood and cognitive ease go together. Bad mood and cognitive strain are associated because tougher times demand System 2.

System 1 monitors what is going on around us by constantly engaging in basic assessments; it believes and confirms what it sees, while System 2 doubts and challenges.

The “halo effect,” for instance, occurs when the brain uses a small amount of information to form broad, sweeping conclusions about someone or something without considering what information might be missing.

ife is more manageable when there are patterns to follow.

Paying attention requires you to spend mental energy. Usually, you can only process one System 2 mental event at a time.

Brace for a punch

they are essential to human survival