With the optical illusion above, viewers make them feel as if they are falling into the holes they are expanding. And now we have a good explanation about why this happens.
Optical tricks can be caused by various factors in the visual system and nerve systems, even if the effect is similar. For example, a rotating circle of the illusion of the pinablel staff is created by communication delays between different areas of brains that handle visual acuity. On the other hand, the illusion of another rotating circle, …
(Tagstotrasslate) Vision