2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/93478We consider experimental evidence for the hypothesis that the Planck energy, $E_p \approx 10^{19}GeV$, sets the scale $ε$ at which wave function collapse causes deviations from linear Schrödinger evolution. With a few plausible assumptions about the collapse process, we first show that the observed CP violation in $K_L$ decay implies a lower bound on $ε$ remarkably close to $E_p$. If the bound is saturated, the entire CP violation is due to collapse and a prediction made that the branching ratio for CP violation in the B meson decay will be $γ\approx 10^{-5}$. We then show that the assumptions are consequences of a simple non-linear, stochastic modification of the Schrödinger equation with $ε$ setting the scale of the non-linearity.6 pages, 0 figures, plain TeXQuantum PhysicsGeneral Relativity and Quantum CosmologyHigh Energy Physics - PhenomenologyHigh Energy Physics - Theorytext