A woman films a rather perplexing scene in her living room. Facing her, her friend appears to be floating in the air, her feet suspended several centimeters above the ground. For a few moments, the illusion is perfect, giving the impression of witnessing a supernatural phenomenon. But the mystery is quickly solved: it’s an optical illusion. In reality, the woman is simply standing with her feet resting on the coffee table. Her shoes, held vertically, make her legs appear bent and her feet no longer touching the ground, thus creating a particularly convincing levitation effect.