Why you see shapes that do not actually existA neural shortcut causes bizarre optical glitches.

From the show

Brain Perception Illusions

Learn the biological trick that makes your brain hallucinate patterns in high-contrast environments. The Hermann Grid illusion exposes a mechanism called lateral inhibition, where neurons suppress their neighbors to sharpen edges. While this evolutionary feature helps humans navigate low-light settings, it also explains modern screen fatigue and heavily influences interface design.