https://elliotmcguckenphysics.com/2026/04/09/two-theories-one-standard-string-theory-and-the-mcgucken-principle-the-fourth-dimension-is-expanding-at-the-rate-of-c-dx%e2%82%84-dtic-evaluated-against-the-classical-criteria-of/The McGucken Principle: The fourth dimension x4 is expanding at the velocity of light c: x4=ict, ergo dx4/dt=icen2026-04-09T21:32:47+00:00Two Theories, One Standard: String Theory and the McGucken Principle “The Fourth Dimension is Expanding at the Rate of c dx₄/dt=ic” Evaluated Against the Classical Criteria of Physical Sciencephysics, science, philosophy, quantum-mechanics, quantum-physics