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Grok saves a life.In late 2025, a 49-year-old man, pseudonymously known as "u/Tykjen" on Reddit, Norwegian—credits xAI’s Grok AI with saving his life after a near-fatal misdiagnosis.After 24 hours of severe abdominal pain, an ER visit resulted in antacids for presumed acid reflux.Unrelieved, he consulted Grok, which flagged a potential perforated ulcer or atypical appendicitis, urging a CT scan.Returning to the ER, the scan confirmed an inflamed, near-ruptured appendix, leading to emergency laparoscopic sur ...