In the far future, a crossroads on the stellar highway links distant regions of the metaverse. As passing vessels course-correct, their massive energy wakes are channeled into gravitational null spaces, levitating the "erratics" endemic to this exosphere: goliath sculptures of superdense sentient matter. Over the aeons, invisible byways of the metaverse have converged upon this hub, and its many dimensional doorways open on untold corners of the cosmos.