Ordinary Galactic Physics Explains the Observed Signal: A Refutation of the Exotic Sub-halo Interpretation
Across cross-validation folds and after penalizing complexity, an Activation model (ordi-
nary Galactic physics) matches or exceeds the predictive performance of the Exotic sub-halo
specification. No irreducible residuals require new particles.
Posted Dec 1, 2025, 4:15 AM UTC
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