It's evolutionarily favourable to accept the ultimatum. They claim that if you have theory of the other players mind you should reject the ultimatum and hope th

It's evolutionarily favourable to accept the ultimatum. They claim that if you have theory of the other players mind you should reject the ultimatum and hope the other player gives you a better deal. Giving you a better deal isn't possible in the original ultimatum game, but this is more of an iterated ultimatum game.