Would the second player cooperate even if the first player defected, since that’s what they would do if they’d precommitted?
If the first player is even a cooperating rock, the second player should defect. The argument only applies to a “sufficiently similar” TDT agent as the first player, which won’t defect, hence your new problem statement doesn’t satisfy that condition.
If the first player is even a cooperating rock, the second player should defect. The argument only applies to a “sufficiently similar” TDT agent as the first player, which won’t defect, hence your new problem statement doesn’t satisfy that condition.
Oh, okay. I hadn’t fully understood how restricted the range of “cooperate” was by the lack of information about the other player.