Acausal arguments only work in situations where agents can simulate each others with high fidelity.
If the agents follow simple principles, it’s simple to simulate those principles with high fidelity, without simulating each other in all detail. The obvious guide to the principles that enable acausal coordination is common knowledge of each other, which could be turned into a shared agent that adjudicates a bargain on their behalf.
If the agents follow simple principles, it’s simple to simulate those principles with high fidelity, without simulating each other in all detail. The obvious guide to the principles that enable acausal coordination is common knowledge of each other, which could be turned into a shared agent that adjudicates a bargain on their behalf.