Jeppe Hein's *Rotating Square* presents a geometric form in a state of perpetual motion, inviting viewers to question the nature of a simple, familiar shape when stripped of its static quality. The work embodies Hein's signature interest in audience interaction and perceptual experience, transforming a fundamental mathematical figure into something dynamic and alive. Through movement, the piece challenges the boundary between sculpture and performance, making the act of observation itself part of the work.