what
a copy of you is not you-you, it’s another you when you die, that’s it, the other you may still be alive but… it’s not you
disclaimer: no psychadelics used to write this post
Are you sure that guy who wakes up tomorrow after you've gone to sleep is you?
Or the one who wakes up after 10,000 sleeps?
I'm sure he's going to be quite different...
Maybe that dude (the one who woke up after you went to sleep) is another you, but slightly different. And you, you're just gone.
It wouldn't be a solution for a personal existential dread of death. It would be a solution if you were trying to uphold long term goals like "ensure that my child is loved and cared for" or "complete this line of scientific research that I started." For those cases, a duplicate of you that has your appearance, thoughts, legal standing, and memories would be fine.