Why Physical Laws Exist and Why They Cannot Be Fully Described Within the VPR: A Structural Account via the ISR/VPR Framework — The Spin-½ Problem as a Signature of the ISR/VPR Interface

This paper applies the ISR/VPR framework (IVRP-01: DOI 10.5281/zenodo.22730176; IVRP-02: DOI 10.5281/zenodo.22761568) to the most fundamental question modern physics has left unanswered: why do physical laws exist, and why are physical constants universal? HYPOTHESIS: Physical laws do not arise spontaneously from within the VPR (Visible Phenomenal Realm). They are constituted through the action of the ISR/VPR interface — the boundary that precedes spacetime. THE SPIN-½ SIGNATURE: When electron spin is calculated classically, the surface velocity exceeds the speed of light (~100c). This is the same structural signal as the ∞ identified in IVRP-01 — not a computational breakdown, but a signal that the VPR description has reached the boundary of the ISR. The two-rotation cycle of spin-½ reads, through the ISR/VPR framework, as one complete traversal of the ISR/VPR interface: one rotation in the VPR, one traversal through the ISR, one complete unit of the electron's existence. WHY PHYSICAL CONSTANTS ARE UNIVERSAL: The ISR contains no distance (d_ISR(x,y) = 0, established in IVRP-02). The ISR/VPR interface acts without spatial distinction across the entire observable universe. Universality is not a coincidence — it is a structural consequence of the absence of distance in the ISR. THE UNIFIED ∞ READING:IVRP-01: vacuum catastrophe, quantum gravity → VPR reaches ISR boundaryIVRP-02: wormhole at Planck scale → VPR-only account of non-localityIVRP-03: electron spin ~100c → VPR-only account of physical law CRITIQUE/FALSIFIABILITY: Each interpretation is accompanied by its anticipated scientific objections and a structural response. SOURCE DISCLOSURE: The ISR/VPR framework derives from Katakamuna — an ancient Japanese descriptive system of 48 geometrically defined Sonic Elements and 80 Verses. Full disclosure at j-katakamuna.com. The validity of this framework is independent of its origin — what is asked is whether it contributes to the understanding of the universe. AI COLLABORATION: Developed in iterative collaboration with Claude (Anthropic). SERIES: Third paper in the ISR/VPR Research Paper Series.IVRP-01: DOI 10.5281/zenodo.22730176IVRP-02: DOI 10.5281/zenodo.22761568