A theory that is incapable of dealing with agents that make decisions based on the projected reactions of other players, is worthless in the real world.
However, an agent that makes decisions based on the fact that it perfectly predicts the reactions of other players does not exist in the real world.
Newcomb does not require a perfect predictor.
I know that the numbers in the canonical case work out to .5005 accuracy for the required; within noise of random.
A theory that is incapable of dealing with agents that make decisions based on the projected reactions of other players, is worthless in the real world.
However, an agent that makes decisions based on the fact that it perfectly predicts the reactions of other players does not exist in the real world.
Newcomb does not require a perfect predictor.
I know that the numbers in the canonical case work out to .5005 accuracy for the required; within noise of random.