Wait! Found a thing. XL: An Emperor For All Outcomes "Meanwhile, Oryx brooded on the Vex. 'I've met a worthy rival,' he said. 'They want to exist forever, just as I do. But I don't understand them.' At this his worm began to chew on him, for he was bound to understand." Essential proof that post-Akka, Oryx was still bound to explore and understand by his Worm.