ξ

ξ (Xi) is one of the most essential ideas presented in this theory. It describes a universal set of representations of things in reality. That is to say, everything within ξ is not necessarily a concrete object, but a formula for something which one or multiple of can exist. This means that ξ effectively encompasses the set of things that "can be real," and can be said to represent the set of reality. It could also be represented as a graph showing the correlations between every concept in reality, though such a graph would be infinitely large.

ξ also contains itself. This comes with a consequence that is of particular interest for Reality Hackers; representations of the contents of ξ created within ξ are also contained within ξ. That is to say, if you can represent something that could be in ξ, it becomes a part of ξ and becomes able to be manifested within the universe. this inevitably means that some operations within ξ result in paradoxical self reference, a dangerous set of edge cases that when created could threaten the stability of the contents of ξ.