The mainstream view dismisses YDIH as refuted, but recent scholarship argues it was prematurely rejected—the evidence (impact glass, anomalous nanoparticles in ice cores) is real, but the scientific establishment favored the simpler "freshwater disruption" explanation. My read: YDIH deserves serious testing, not dismissal; the Younger Dryas was real and catastrophic, and a cosmic trigger fits the timeline better than most realize, though proving causation requires more data.