Reality Stability

The resistance a dimension, universe, timeline, or plane of reality has against tears, damage, and disruption to its physics, time, and space and the integrity of its own physics, whether done by itself or a separate entity, is called reality stability. In order for any kind of said space formation to be able to survive against the constant bombardment of black holes, wormholes, and tresspassing beings, it must have some level of reality stability that prevents it from being damaged easily.

Universes
Universes have the most stable reality in most cases. Physics remain steadfast and do not change, and entering universes is difficult. This is because the reality stability withstands damage or attempted damage to itself, for many beings often try to tear a hole into the borders that surround the edges of the universe in order to enter.

TBC