Ah I didn't realize the whole "scar" thing. Haven't played in a while so I must have forgotten that detail. But
even if that kind of technology was possible you'd run into issues of the brain simply aging on it's own. Obviously you could then just hand wave some more sci-fi at it like "anti-aging brain cream" which is just radioactive semen because science. I love sci-fi.
If you have all the memories feelings ethics morals etc of the prior consciousness, does it matter, it seems like a meaningless distinction.
It's the difference between being
you vs leaving a legacy version of you behind. Are you trying to achieve immortality in the "first person perspective" so to speak or are you just trying to immortalize yourself - meaning the you that is
you is gone but a copy remains.
Edit: A slightly different example that is kind of relevant is from the game Endless Space. One of the factions
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is an entire faction of clones of this one insanely rich narcissist that decided to go off on his own into space. Think Elon Musk but with trillions instead of billions of dollars. He gets lonely on his new planet so he clones an empire's worth of himself proclaims himself
Horatio The First and then sets his sights on the stars.
I don't remember if I played that faction much but from a google search I pulled up a comment about the in-game Horatio plot:
Horatio discovers Horatio behind plot to assassinate Horatio. But in a surprising twist Horatio was really Horatio in disguise, and now takes Horatio's place. This relates back to my original point about clones and consciousness. If
you were Horatio Prime you'd want to be in control of the empire. Another Horatio becoming emperor in your stead would still be you but it wouldn't be you you.
LMAO I just learned there is a Horatio dating sim called
Love Thyself - A Horatio Story. It's free on Steam so I'm going to check it out tonight.