Plane theory

Plane theory is a field of study pertaining to the nature of the Plane or Planes of existence. It attempts to explain the nature of the various Planes that appear to exist, as well as the relationships between these.

The study of plane theory is intricately related to Magic.

Single plane theory
Single plane theory postulates that there is but one Plane of Existence, which wholly encompasses the universe. For this reason, it is also known as Sphere theory.

Perhaps its most important conclusion, the premises of Single plane theory, if accepted, postulate that an observer can, under appropriate conditions, perceive and interact with the entirety of the Universe.

Compound plane theory
Compound plane theory is a faction of Single plane theory that postulates that, although the universe is comprised of a Single Plane, this plane is founded on a compound number of perceptions, different realities, some of which may be unavailable to an observer, even with total freedom of conditions.

Multiple plane theory
Multiple plane theory postulates that there is a multiple amount of Planes of Existence that, together, span the breadth of the Universe. It was developed recently by Moras Gleckstett, and is currently the norm among academia.

Multiple plane theory and Compound plane theory are often confused for each other, but

Dimensional plane theory
Dimensional plane theory postulates that the number of planes in the universe is tangent with the Dimensions that an observer is able to perceive. For this reason, the Universe as a set of planes is Relative. Dimensional plane theory is also known as Relative plane theory. A being of intelligence, for example, will be able to perceive and interact with more Planes of Existence than an animal or a creature.

Multi-dimensional plane theory
Multi-dimensional plane theory specifically states that any observer must be able to perceive at least three different dimensions if it is to be regarded as a valid observer in Dimensional plane theory. This is known as the Fundamental Theorem of Multi-dimensional plane theory, and its ramifications are extensive, as it allows a far more concrete understanding of Dimensional plane theory. Nonetheless, this Theorem is attacked by many adherents of Dimensional plane theory.