Refik Anadol’s “Machine Hallucinations: Sphere,” on the surface of the Sphere in Las Vegas. Anadol’s piece, an artificial intelligence data sculpture called “Machine Hallucinations: Sphere,” will inaugurate the Exosphere art program. “Machine Hallucinations: Sphere” is not unlike Anadol’s previous work, but its unusual canvas required “a whole new thinking and new algorithms,” the artist says. As Aronofsky describes it, the …