Four to One: The Forced Lepton-Flavour-Violation Spectrum, a Forward Prediction the Experiments Have Not Yet Measured

One axiom. One operation. Zero free parameters. Lepton-flavour violation (τ→eγ, μ→e conversion) is hunted worldwide (MEG, Mu2e, COMET, Belle II), and the Standard Model predicts essentially nothing about the relative rates. This paper forces them. Each lepton generation sits at a fold standing mode — e = 1/4, μ = 1/2, τ = 3/4 — and a flavour-changing transition has amplitude equal to the channel separation, so its rate goes as the separation squared. The headline ratio is Γ(τ→e)/Γ(τ→μ) = (1/2)²/(1/4)² = 4:1, mass-independent and forced. This is a forward, falsifiable prediction aimed at a number the labs have not yet measured: when LFV is seen, τ→e should outrun τ→μ four to one. Machine-checked; reproduces from one command. A standalone result within the Smithian Fold Theory of Everything (SFTOE). Full corpus, code, and the run-it-yourself VERIFY.md protocol: https://github.com/MettaMazza/Smithian-Fold-Theory