Thinking, Fast and Slow - Deepstash
Thinking, Fast and Slow


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Thinking, Fast and Slow

by Daniel Kahneman

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The Characters Of The Story

There are two types of thinking, one is fast and the other is slow. Each type of thinking is its own system with individual abilities, limitations, and functions. The main difference between the two is that fast thinking requires little to no effort to operate, whereas a conscious effort is necessary for slow thinking to work. For example, you would use fast thinking to solve the problem “2 + 2 = ?” and slow thinking to fill out a tax form.


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1. Learn what dilated pupils mean.
When your pupils are dilated, it means that you have focused your attention on something and find it interesting; maybe you are looking at an attractive person or even trying to solve a difficult math problem.

2. Learn what constricted pupils mean.

When your pupils are constricted, it means you aren’t all that interested in what you are looking at; maybe you are looking at an average-looking person, or the math problem you were trying to solve was too difficult and you have given up.


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