the phi phenomenon

The phi phenomenon is an optical illusion that occurs when a series of still images are presented in rapid succession, leading the observer to perceive motion. This effect is why, for example, films and animations appear to move, even though they are just a sequence of static frames. Our brain fills in the gaps, creating the illusion of continuous motion. The phi phenomenon highlights how our perception can be influenced by the way images are presented, demonstrating the complex workings of visual processing in the human mind.