Xu Lingfeng is a QA engineer, AI testing practitioner, and author. With 15 years of experience in software testing, he writes about what happens when AI meets the real world, where impressive demos meet production systems, metrics meet reality, and human judgment still matters. His writing often begins as serialized stories before being revised, expanded, and reorganized into books. He is the author of *AI, Ego & Regret: 15 True Failure Modes from the AI Era* and the ongoing *AI, Ego & the 36 Stratagems* series, which explores modern AI failures through the lens of ancient Chinese strategy. His work asks a simple question: When AI fails, who was supposed to be watching?
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