https://elliotmcguckenphysics.com/2026/10/14/a-derivation-of-feynmans-path-integral-from-the-mcgucken-principle-of-the-fourth-expanding-dimension-dx%e2%82%84-dt-ic-how-huygens-principle-feynmans-many-paths-brownian-motion-and-entrop/ 2026-10-14T16:51:35Z The McGucken Principle: The fourth dimension x4 is expanding at the velocity of light c: dx4/dt=ic : Ergo physics. QED en A Derivation of Feynman's Path Integral from the McGucken Principle of the Fourth Expanding Dimension dx₄/dt = ic : How Huygens' Principle, Feynman's Many Paths, Brownian Motion, and Entropy's Increase All Emerge from a Single Geometric Postulate 2026-10-14T16:51:31Z Blog https://elliotmcguckenphysics.com/2026/10/13/the-mcgucken-principle-dx%e2%82%84-dt-ic-as-the-completion-of-kaluza-klein-how-dx%e2%82%84-dt-ic-reveals-kaluza-kleins-fifth-dimension-as-the-emergent-parameter-t-of-the/ 2026-10-13T22:14:33Z The McGucken Principle: The fourth dimension x4 is expanding at the velocity of light c: dx4/dt=ic : Ergo physics. QED en The McGucken Principle dx₄/dt = ic as the Completion of Kaluza–Klein: How dx₄/dt = ic Reveals Kaluza–Klein’s Fifth Dimension as the Emergent Parameter t of the Fourth Dimension’s Expansion, Unifying Gravity, Relativity, Quantum Mechanics, Thermodynamics, and the Arrow of Time, Deriving the Electromagnetic U(1), Maxwell’s Equations, Charge Quantisation, Exact Photon Masslessness, and the Monopole Prohibition on the Phase Circle of x₄’s Oscillation, Deriving the Cylinder Condition as an Identity and the Kaluza–Klein Radius as the One-Tick McGucken Sphere Dressed by the Fine-Structure Constant, and Resolving the Radion, the Planck-Mass Tower, the Mass–Charge Catastrophe, the Chirality No-Go, and the Vacuum Instabilities of the Static Fifth Dimension 2026-10-13T22:14:33Z Blog