CPT symmetry
Concept
Charge, Parity, Time symmetry, a fundamental symmetry of the universe. VSL theories may break this symmetry, implying the laws of physics could depend on the direction of time, which is problematic.
Mentioned in 2 videos
Videos Mentioning CPT symmetry
Frank Wilczek: Physics of Quarks, Dark Matter, Complexity, Life & Aliens | Lex Fridman Podcast #187
Lex Fridman
A fundamental symmetry in physics stating that physical laws are invariant under combined charge conjugation (C), parity transformation (P), and time reversal (T).
What If The Speed of Light is NOT CONSTANT?
PBS Space Time
Charge, Parity, Time symmetry, a fundamental symmetry of the universe. VSL theories may break this symmetry, implying the laws of physics could depend on the direction of time, which is problematic.