“Celui qui tombe,” or he who falls, is an illusory performance from self-described circus artist Yoann Bourgeois (previously) that opens with six dancers on a spinning platform. As the central stage turns, the performers run forward to fight the perpetual motion, even though their efforts keep them in the same spot. The sextet moves easily throughout the performance, grasping onto each other and stopping in neat lines as they respond to the stage’s revolutions. As Kottke notes, the centripetal force of the platform makes it possible for the dancers to contort their bodies into seemingly implausible positions, like the acute bends shown below, and remain standing.
Bourgeois created “Celui qui tombe” in 2014 and shares an extensive collection of similar illusions on YouTube. You also can keep up with his work on Instagram.