An optical illusion is an appearance of something amuck without it actually being so. In this case, something is actually (not illusory) happening before it ha

An optical illusion is an appearance of something amuck without it actually being so. In this case, something is actually (not illusory) happening before it happens, if we assume some actor that can act faster than causality can keep up. I have also come to the conclusion I have forgotten too much of my math haha, was a fun exercise trying to recover some part of it.