Meta already created a bot to play the game Diplomacy, including negotiating in natural language with the other players. Not only did the game end up in the top

Meta already created a bot to play the game Diplomacy, including negotiating in natural language with the other players. Not only did the game end up in the top at a large tournament--none of the human players had any idea they were playing an AI. There was one comic slip up, where the program first suggested to invade, only to later counsel against it. The human in question complained about the conflicting advise, but didn't realize he found a bug. And why would he?