De Ames Window illusie doet je hersenpan smelten

Mocht je een dezer dagen toevallig nog van de verdovende middelen snoepen dan moet je daarna zeker even deze video checken.

When the rotation of the window is observed, the window appears to rotate through less than 180 degrees, though the exact amount of travel that is perceived varies with the dimensions of the trapezoid. It seems that the rotation stops momentarily and reverses its direction. It is therefore not perceived to be rotating continuously in one direction but instead is mis-perceived to be oscillating.

*mind is blown*