The "infinite diamond", the illusion of optics that confuses everyone in the networks

It is a GIF that does not seem to generate doubts. A diamond that moves, up, down, left or right. Is there anything strange in the picture? Yes: the geometric figure is actually stillit's an interesting optical illusion.

Here, the message shared on Twitter by Arthur Shapiro with the "perpetual diamond", name given to this phenomenon.

In his tweet, Shapiro explained that "the diamond is fixed in the same place, even if it seems to move"This also explains that we can move away from the screen to see when the effect disappears.

The key to generating the illusion is the gray background and the small edges of the diamond, which constantly change position to make the brain believe that the geometric figure is moving.

The psychology professor in Washington DC who created this moving image also wrote a report in which he explains how he fools those who watch him. "The direction of movement is determined by the relative phases of the light modules, between the edges and the background," he said.