If there is no objective fact that simulations of you are actually are you, and you subjectively don’t care about your simulations, where is the error?
I meant “if you are so selfish that your simulations/models of you don’t care about real you”.
Rationality doesn’t require you to be unselfish...indeeed, decision theory is about being effectively selfish.
Sometimes selfish rational policy requires you to become less selfish in your actions.
https://en.wikipedia.org/wiki/Long-term_nuclear_waste_warning_messages
French author Françoise Bastide and the Italian semiotician Paolo Fabbri proposed the breeding of so-called “radiation cats” or “ray cats”. Cats have a long history of cohabitation with humans, and this approach assumes that their domestication will continue indefinitely. These radiation cats would change significantly in color when they came near radioactive emissions and serve as living indicators of danger.