Japanese artist/mathematician Kokichi Sugihara has once again won the Best Illusion of the Year Contest, an online contest run by ophthalmologists, neurologists, artists and others in “the illusion community,” with his new “Triply Ambiguous Object.” Watch this short film, part of a series on “Incredible Senseis at Meiji University,” for more on Sugihara and his collection of eye-twisting and brain-boggling illusions.