A revealing qualitative reaction helps explain why this line of work matters at a human level. Watching BoB identify the winning Connect Four move, one observer reacted immediately: "It's obvious that the token must be placed there!" This remark is not forensic evidence and is not presented here as proof. But it captures something important about the behavior being pursued: not merely the production of alegal output, but the emergence of a structurally salient choice that can also appear self-evident to ahuman exposed to the same grid.Special thanks to LL
Jean-Luc Aubert (Thu,) studied this question.