A Nazi radio message survived more than 80 years of codebreaking attempts, including a distributed computing project that pointed thousands of volunteer machines at it. GPT-6 Astra cracked it in about 10 hours. The plaintext turned out to be a lost soldier asking for directions. The Enigma machine itself has been beaten since Bletchley Park, and a modern laptop can brute-force most surviving wartime intercepts. The few that stayed sealed are short, riddled with operator errors, and mangled by…