All right, but how would CDT fail us, if we used it perfectly?
If we used it perfectly it would fail us very little. The ‘used perfectly’ part would prompt us to create and optimize institutions to allow the limitations of CDT to be worked around. It would result in a slightly less efficient system with some extra overheads and some wasted opportunities but it would still be rather good. Specifically it would require more structures in place for creating and enforcing precomittments and certain kind of cooperation would be unavailable.
CDT does, however, tell you to precommit to cooperate in a prisoner’s dilemma against someone who also precommits to cooperate with you, if this is an option.
If we used it perfectly it would fail us very little. The ‘used perfectly’ part would prompt us to create and optimize institutions to allow the limitations of CDT to be worked around. It would result in a slightly less efficient system with some extra overheads and some wasted opportunities but it would still be rather good. Specifically it would require more structures in place for creating and enforcing precomittments and certain kind of cooperation would be unavailable.
Ah, that’s right. CDT tells you to defect in a prisoner’s dilemma against someone identical to you; TDT tells you to cooperate. So TDT wins here.
CDT does, however, tell you to precommit to cooperate in a prisoner’s dilemma against someone who also precommits to cooperate with you, if this is an option.