This is where even Lightstien's Rule begins to (but doesn't fully) deteriorate, as the size of this is so massive, and all above, only containing ^ things isn't the limit (but these areas are still very, very finite indeed). This unverse also contains very, very large planets, the size of a Bubble in some cases, and stars even larger! Their gravity, however, is very small, only about 1 - 3 times that of earth's. If you go more than ^ lightyears from the center, there are very compact Percudicascadaverses.