How to sell emptiness? 🤑

In 1958, the most scandalous exhibition of the French artist Yves Klein called "Emptiness" took place.

He announced that he had found the true expression of emptiness in art. All of France learned about this exhibition. The artist issued a large number of tickets in his signature blue color. 🔵
People bought them for huge sums. And now the X day has come...

A queue of about 3,000 people lined up at the entrance to the exhibition. Yves Klein launched one at an exhibition, the viewer passing through a corridor decorated with blue paint, entered a sterile white room, and in it... EMPTINESS. A transparent cabinet just stood in the middle of the room.
There was a huge scandal. People were most angered by the fact that the artist simply threw the money received from this exhibition into the river.💵

And how would you react?
Photos taken from the site https://teenergizer.org/2016/05/iv-klyajn-ya-dumayu-shho-ya-genij/
https://adindex.ru/publication/gallery/2012/03/20/87518.phtml