Though similar to the Wormholes and Xholes used in everyday trade and travel, Oblivion Vortices differ from them in some very significant ways; the increased gravitational fields which surround these rifts makes travel through them impossible for even the densest of spacecraft, and their uncanny ability to seal themselves closed in a microsecond would make travel through them a gamble at best. Oblivion Vortices are believed to exist in the 4th dimension, and some argue they exist also in a 5th. Believers in this theory assert that the Manifestations which emerge from the vortex are actually transported from the 5th dimension, while others argue that the Manifestations are merely chunks of super-condensed energy laced with the Lucisti virus that have broken free from the chaotic forces surrounding the vortex.