I feel like this has been discussed somewhere already in history.
Ship of Theseus paradox, if you replace the planks and beams of a ship over and over until they are all replaced, is it still the original ship?
Difference is, humans have a perspective on the world which ships and brooms do not have. If you watched a team busying about with a machine for a few hours, and then a human stepped out of it, and then one of the team members turned to you and said "OK we've got a clone of you, now we're going to shoot you in the head" would you say "yes I see that new person out there across the room looks exactly like me, so it IS me, so go on, shoot me?"
Humans change all the time, ask your teenage self that.
Some things stay rather permanent though, as they're dynamically reinforced, short of serious trauma.
Those parts are likely to survive stepped replacement, or rather both the replacement and original adjust to get to the original state.
It's like trying to replace a component of a feedback system while it's live, it will be out of whack for a while but if control is good enough will return to baseline.
The universe doesn't have ships it has something that is aproximated somewhat by waves or particles or strings. The ship is a convenient pointer to discuss a collection of particles that whose state depend on each other in some fashion.
It's a handle of convenience. If it points to something useful it's useful if not then not there never was or will be a ship of theseus so whether it's the same ship means nothing.
Ship of Theseus paradox, if you replace the planks and beams of a ship over and over until they are all replaced, is it still the original ship?
Difference is, humans have a perspective on the world which ships and brooms do not have. If you watched a team busying about with a machine for a few hours, and then a human stepped out of it, and then one of the team members turned to you and said "OK we've got a clone of you, now we're going to shoot you in the head" would you say "yes I see that new person out there across the room looks exactly like me, so it IS me, so go on, shoot me?"