I’d like to ask the following:

As I understand it, you agree that R1 and R2 would not be the very same individual, even if they were exact copies of each other (i.e., two identical tokens of the same type). That’s the idea I’m trying to convey in my post, but it seems I’m not doing it very well, and I’ve started to doubt myself—whether this is merely a “human language game.”

But it does seem genuinely true: if there are two tokens, then there are two independent “centers of experience” (if we are talking about conscious creatures of course). 

And a single token in two locations does not seem physically realizable to me, although my knowledge of physics is fairly limited.

You also say that there are certain intuitions by which one can test or track the identity of objects. I’m not familiar with those ideas, but I’ll definitely look into them—thank you for the link.

Am I correct in understanding that, in the context of my thought experiment about perfect resurrection, you consider it impossible to bring back that very “I”—that very same line of experience, that very same “view from the inside”—whose existence ended with the person’s death?

And regardless of whether the answer is yes or no, I’d be interested to hear why you think so.

Yes, that's exactly what I meant.

I still haven't fully figured out the issues of consciousness and illusionism, but it seems I'm an illusionist. I doubt that inverted qualia is possible without changing the physical structure. But you understood my idea correctly — "the view from within" will be another one, not the same one. I'm glad I was able to convey this idea, ha. 

I would rather analyze this concept; I do not yet have completely accurate and firm conclusions on these issues.

I would like to emphasize once again that, for me, the question is that even when creating identical clones, we have two subjective experiences, two perspectives from within. Therefore, for me, being “the same” in the “perfect resurrection” scenario means remaining the same consciousness, without creating an additional consciousness, an additional first-person perspective (above, in my response to Dagon, I tried to explain this more clearly again).

Most likely, there may be no way to verify whether the new instance is “the same,” but I am interested in discussing this.

Of course, I agree that our personality is constantly changing. In my post, I wanted to reflect on the fact that even with perfect cloning, R1 would retain its sense of self, while R2 would develop its own separate sense of self. Both would have two separate "first-person perspectives," even if we imagine that time has frozen and they remain two completely perfect copies. I mean, they would not become a single consciousness connected by invisible threads.