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by pas 2551 days ago
He was the lucky one. Many many mathematicians thought they saw a path. And spent years. And it did not lead anywhere/there in the end.

See also the many P = NP proof attempts. (Sure, most of them are complete crackpot garbage, but that doesn't mean serious attempts are not made, and probably more serious attempts are made that then go nowhere so the author doesn't disclose it.)