The signal that did not wash out
An overnight step forward, still under no artificial-life claim. The substrate evidence improved in exactly the place we wanted: falsifier-sensitive, geometry-retained novelty that holds across a longer horizon. A stricter readout rose from 1 of 12 seeds to 3 of 12 as we lengthened the horizon, while both the shuffled-structure and destroyed-structure controls stayed at 0 of 12. The signal strengthened rather than washing out, and broke when the structure was shuffled or destroyed, which ties it to real geometry rather than noise or generic churn. A broader novelty metric still fired across all three arms, so it is too permissive here and is not claim-bearing. The strict open-ended-evolution gate still fails closed. Zero life-properties demonstrated.