There is a famous experiment where faces are alternated very quickly, and after a while they all start to look grotesque until you pause the effect. https://en

There is a famous experiment where faces are alternated very quickly, and after a while they all start to look grotesque until you pause the effect. https://en.m.wikipedia.org/wiki/Flashed_face_distortion_effect https://en.m.wikipedia.org/wiki/Flashed_face_distortion_effe...