FDT is a decision theory and doesn’t in and of itself value anything. The values need to be given by a utility function.
I explicitly said that this difference in values is meant to reproduce the way that FDT/CDT are usually argued to act in these sorts of scenarios, but is actually orthogonal to decision theory per se.
Psychological Twin Prisoner’s Dilemma
This scenario is a stronger one for the decision theory FDT. But that’s not the sort of scenario I was referring to: the argument in my comment applies to scenarios where one of the copies makes itself worse off to benefit the others, like the Bomb or transparent Newcomb. These were the main topic of discussion of the post, and I still think it’s accurate to say that the difference in intuitions between CDTists/FDTists here comes down to a values/semantic dispute.
I explicitly said that this difference in values is meant to reproduce the way that FDT/CDT are usually argued to act in these sorts of scenarios, but is actually orthogonal to decision theory per se.
This scenario is a stronger one for the decision theory FDT. But that’s not the sort of scenario I was referring to: the argument in my comment applies to scenarios where one of the copies makes itself worse off to benefit the others, like the Bomb or transparent Newcomb. These were the main topic of discussion of the post, and I still think it’s accurate to say that the difference in intuitions between CDTists/FDTists here comes down to a values/semantic dispute.