Rooms in the UA are in a constant state of flux, making no two trips between towns and intersections the same and affecting every aspect: the room types and states of decay, the contents of each room, and even the number of rooms separating you from your next destination. There is no known explanation for this constant state of flux; the most widely-accepted theory is that an unknown '''chaotic force''' is responsible for it.
The [[Scientific Community|Theoretical Physics Science Team]] has theorized believes that the effects of the chaotic force can be repelled by settling communities and gathering people in the same area. This results , resulting in the formation of a new [[Civilized Area]], such as a [[town]] or an [[intersection]]. A controversial theory suggests that people who live in the UA for extended periods of time may be exposed to the chaotic force, resulting in the development of mental issues and aggressive, self-destructive behavior. This theory may explain the number of hostile creatures living in the UA, but it has not been definitely proven to be true, as there are many examples of creatures that do not exhibit hostile behavior.