Peak-End Rule: How We Really Remember Experiences

The Peaks-Ends Rule is a great discovery because it reveals a cognitive bias in humans.

Our brain despite its sophisticated design, always processing information in a simplified way, attributes the most intense and final moments of an experience to our overall perception of it.

This bias can be used intentionally to create positive experiences by focusing on the peak and the end.

It also tells us that anyone can utilize this cognitive bias to design a good experience.

In 2002, Nobel Prize-winning economist Daniel Kahneman introduced the Peak-End Rule, a concept that explains how we remember experiences.

According to this rule, people's memories of an event don't necessarily align with how they felt during the entire experience. Instead, their recollections are shaped by two key moments: the peak (the most intense part) and the end.

If both the peak and the end are pleasant, our brain convinces us that the entire experience was enjoyable—even if parts of it were less than ideal.

In other words, we evaluate experiences based on these two moments, rather than the finer details or the overall average.