How the Diderot Effect explains why you buy things you don’t need

Scotty Hendricks in Big Think:

In 1765, Russian Empress Catherine the Great heard that the philosopher Dennis Diderot was in dire need of money. As a well-known patron of the arts, sciences, and Enlightenment philosophers, she immediately purchased his entire library. She directed him to keep it at his home and hired him as her librarian with 25 years of salary upfront.

Diderot, whose finances had never been sound, proceeded to use some of the money to buy a very lovely scarlet robe.

This is where his troubles began. After he got used to the splendor of his new garment, he noticed that his apartment wasn’t quite as nice as it should be now that he was wearing beautiful clothes.

To fix this, he replaced his old prints with new ones. Then he noticed his armchair was no longer suitable and replaced it with a new leather one. His desk was then suddenly out of place and needed to be updated as well.

Before long, he had replaced nearly every item in his home with a shiny upgrade. In the end, he was in debt and still hungry for more material goods.

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