Ah, I see what happened. You responded to my initial comment with: > Firstly, although it is proven that there is an optimal (game theoretic) strategy to play

Ah, I see what happened. You responded to my initial comment with: > Firstly, although it is proven that there is an optimal (game theoretic) strategy to play (Nash) [...] The reference to Nash here made me think you were claiming there to be an optimal strategy in the multiway case. I've been talking mostly about multiway ever since. I associate Nash equilibrium with multiway games and wouldn't use the term "Nash" to describe GTO play in a heads up game, even though a Nash equilibrium would be GTO. But maybe this is standard lingo? Question: So is it the case that there are human players that are measurably better (in a statistically significant way) than the best AI players, heads up?