It is also a way harder problem, because to figure out what information your opponent knows or figuring out what they could know is a really difficult challenge. I'm not sure how to go about that. Yes. >> I think in many applications in something like reinforcement learning. So, right now I can imagine splitting the environment into the portion that which I can model that will be like Chess moves, and then I can set the parts that I don't necessarily want to model, because I'm very risk averse. So, that could become like adversarial moves,