The art world is a soft target for satire, not least because the art world’s appetite for satire of itself is limitless. Artists are constantly sending up tradition and the scene through their art, only to see the cycle repeat itself as their own work becomes staid and canonical. It’s unreasonable to expect any satire of the art world to be fresh, since knowingness is the first requirement to get in the door. The Square won the Palme d’Or at Cannes this spring not because it lashes the art world in a new way, but because Ruben Östlund delivers his lashings so exquisitely.