book hack

The Upside of Irrationality

Dan Ariely

5 mins

3 key insights

Visual, audio & text

The Upside Of Irrationality shows you the many ways in which you act irrationally while thinking what you're doing makes perfect sense, and how this irrational behavior can actually be beneficial - as long as you use it the right way.


The Upside of Irrationality

The Upside of Irrationality

by Dan Ariely


Dan Ariely is like a bias-sniffing dog, uncovering psychological fallacies in our minds and helping us understand them in plain language. Much of his research is based on how we can defeat or use our irrational behaviors to live better lives.

Sometimes being irrational has its advantages. For example, it can be pretty useful when it comes to online dating, where logic might stall us rather than help us. In our optimized world trying to make 100% rational decisions all of the time seems tempting, and most people would probably adopt a robot-like decision-making ability in a heartbeat if they could.

Ariely argues that this isn't the best solution. Much of what makes us irrational is also what makes us human and allows us to connect with one another. We can dive into our irrationality and use it to connect our logical side to our emotions, and thrive.

Favorite quote

We are all susceptible to a formidable array of decision biases. There are more of them than we realize and they come to visit us more often than we like to admit.

- Dan Ariely

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