This is not an optical illusion, but it takes advantage of exactly the same principles that make optical illusions work: Our eyes and brain don’t scan reality like a camera does. Instead, the brain interprets external inputs, building its own reality. No spoilers, just watch.
https://www.youtube.com/watch?v=qpPYdMs97eE
It has always blown my mind that our brain can feel so imperfect—yet this is only a symptom of how perfect it is, how efficient it got at processing information through a hundred thousand years of evolution, optimizing our perception to increase our chances of survival.
