My copy lives forever. How does that bear upon me?
There’s got to be a connection between identical systems. That just feels right. A kind of perfect sympathy. And add consciousness to the mix and it seems inevitable.
And given that there will always be infinite cases of total entropy reversal, there will always be a “plausible narrative” for resurrection available for every corpse. So if “immortality via copy” doesn’t do it, that will.
Here are 2 authors who explored the impossibility of subjective death. IE while everybody else sees you die, you actually travel to a universe where your survival is explained by a plausible narrative (and progressively less plausible). Or thereabouts.
GREG EGAN. Permutation city. He called it “dust theory”
ROBERT CHARLES WILSON. Divided by Infinity (in “The Perseids and other stories”). I forget what he called the theory.