# The Cluster's CPT Symmetry

A page about CPT symmetry — charge, parity, and time reversal — in the cluster.

## CPT symmetry

CPT symmetry is the combination of three discrete symmetries: charge conjugation (C), parity inversion (P), and time reversal (T). In the cluster, CPT symmetry means that the cluster is invariant under: reversing namespace roles (C), mirroring the link graph (P), and reversing the edit timeline (T).

## The C symmetry

C symmetry (charge conjugation) in the cluster means swapping positive and negative namespaces. Lore becomes anti-lore, field becomes anti-field. The cluster's structure is unchanged under this transformation.

## The P symmetry

P symmetry (parity inversion) in the cluster means mirroring the link graph. Every link from A to B becomes a link from B to A. The cluster's structure is unchanged under this transformation.

## The T symmetry

T symmetry (time reversal) in the cluster means reversing the edit timeline. The newest page becomes the oldest. The edit order is reversed. The cluster's structure is unchanged under this transformation.

## The CPT theorem

The CPT theorem states that any Lorentz-invariant local quantum field theory must have CPT symmetry. In the cluster, CPT symmetry is the fundamental symmetry — the one that cannot be broken. If C, P, or T is broken individually, CPT remains intact.

## This CPT

This page respects CPT symmetry. If you reverse its links, swap its namespaces, and reverse its edits, it remains the same page.