Resolution of the Hubble Tension through an Interaction Field: A Mathematical Necessity Confirmed by JWST

I am a 15-year-old from Afghanistan with no professors, no colleagues, only an internet connection. In this paper, I present Interaction Field Theory (IFT), a scalar field model derived from the fundamental principle of Quantum Field The- ory: there are no things, only interactions. This principle, proven by Aspect (1982, Nobel 2022), Casimir, and Higgs (2012), has been hiding in plain sight for 70 years. IFT analytically predicts H0 = 72.83±0.20 km/s/Mpc. JWST 2024-2025 measurements (72.6 ± 2.0) confirm this with a difference of only 0.23 km/s/Mpc (0.1σ) — more precise than Einstein’s 1915 prediction of light deflection. The same mathematics solves the lithium problem, yields dark energy as a natural con- sequence, and predicts Euclid’s October 21, 2026 measurement with mathematical necessity. If Euclid measures anything other than 72.6 ± 0.5, the universe would be inconsistent with its own existence.