There is a difference between X and Xi: the original X can choose to simulate copies of herself, which exist in the world_history and are legitimate subjects to assign utility to.
A copy X_i can’t create further copies (pressing “sim” does nothing in the simulation), so her utility for the action is different.
There is a difference between X and Xi: the original X can choose to simulate copies of herself, which exist in the world_history and are legitimate subjects to assign utility to.
A copy X_i can’t create further copies (pressing “sim” does nothing in the simulation), so her utility for the action is different.