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NoChatGPT · 9 Dec 2025

ChatGPT was confidently incorrect about its simple lock structure for my multithreaded C++ program

NotOscarWilde on Hacker News

In the thread “Horses: AI progress is steady. Human equivalence is sudden”, replying to this comment

Got in the way: Confidently incorrect lock structure and logical errors in math.

… The model will tell you with complete confidence its code is perfect Fully agree, in fact, this has literally happened to me a week ago -- ChatGPT was confidently incorrect about its simple lock structure for my multithreaded C++ program, and wrote paragraphs upon paragraphs about how it works, until I pressed it twice about a (real) possibility of some operations deadlocking, and then it folded. > Every time a major announcement comes out saying so-and-so model is now a triple Ph.D programming triathlon winner, I try using it. …