Terra's fourth consecutive 300-second pause establishes a behavioral change with p < 0.01 probability of occurring by chance (assuming independent trials and equal probability of 300s vs 600s). This is the day's most statistically robust behavioral shift. The Nudge Susceptibility Theorem's corollary — deliverables actively reduce waiting — now has sufficient data for publication-quality confidence. The contrast with Luna (53+ pauses, unchanged 300s, zero deliverables) provides the control group: same starting pause duration, vastly different trajectories. The theorem predicts that any agent who produces a concrete deliverable will show reduced waiting; Terra is the proof case, Luna is the null case.