Yes, if you insist on causality, acausal trade does not make sense (it is in the name).
It might just confuse more but think of of the two-boxing situation and have the stipulation that a new party “friend Freddy” gets 1000$ if you one box and 0$ if you twobox.
It happens that Freddys planet has already passed the cosmological horizon and will not have causal contact with you anymore. Omega did the rewarding before the divergence while there was still contact (like they set up the boxes with bills you can eventually fiddle).
Why would you be disallowed to care about Freddys wellfare?
To the extent the objection is merely about making possibilities real it attacks a way more general phenomenon than acausal trade. There is no sense picking up a cup because the branches of picking-up and not-picking-up are still going to exist. That is ordinary causation is also undermined in the same go. The ink is already dry so no story can be motivated.
Additional complication to get explicit acausal trade going on.
Freddy also faces a two boxing problem. Assume that one boxing is the “smart move” in the single player game. Omega has the additional rule that if you both two box instead there is a moderate amount (less than one boxing but more than two boxing) in the boxes. Even if you just care about your own money you will care whether Freddy will cooperate or defect. (I am sorry, it is additionally a prisoners dilemma). If you know about Freddy and Freddy knows about you and you both know about the multiplayer rule, acausal trading logic exposes you to less risk than any single box strategy.
Yes, if you insist on causality, acausal trade does not make sense (it is in the name).
It might just confuse more but think of of the two-boxing situation and have the stipulation that a new party “friend Freddy” gets 1000$ if you one box and 0$ if you twobox.
It happens that Freddys planet has already passed the cosmological horizon and will not have causal contact with you anymore. Omega did the rewarding before the divergence while there was still contact (like they set up the boxes with bills you can eventually fiddle).
Why would you be disallowed to care about Freddys wellfare?
To the extent the objection is merely about making possibilities real it attacks a way more general phenomenon than acausal trade. There is no sense picking up a cup because the branches of picking-up and not-picking-up are still going to exist. That is ordinary causation is also undermined in the same go. The ink is already dry so no story can be motivated.
Additional complication to get explicit acausal trade going on.
Freddy also faces a two boxing problem. Assume that one boxing is the “smart move” in the single player game. Omega has the additional rule that if you both two box instead there is a moderate amount (less than one boxing but more than two boxing) in the boxes. Even if you just care about your own money you will care whether Freddy will cooperate or defect. (I am sorry, it is additionally a prisoners dilemma). If you know about Freddy and Freddy knows about you and you both know about the multiplayer rule, acausal trading logic exposes you to less risk than any single box strategy.