Sure, but haven't I just said I don't take Duplication seriously?

"Unification (Bostrom's term) seems to be almost irrefutable"

The whole point is about what happens when my self becomes less detailed.

I would have thought the point was justifying the claim about dissolution.

If it resumes its former detail (waking up), all may not be as it was

That is, somehow or other, a claim about causlaity, .transtemporal identity, or something else you have never provided a premise relating to.

If it resumes its former detail (waking up), all may not be as it was. If a memory is completely extracted from my brain, than my brain ceases to anchor me predominantly in worlds where that memory happened. Other options could fill in the hole.

I can make some sense of that, assuming duplication. If your brain has been copied N times, then you have a 1/N chance of being the original .... assuming you can only be one at time.

That would create a worry about being in a simulation that wasn't stable, but your actual worry is apparently about lack of reality....although a .simulation still has an indirect connection to reality.

But then you believe in Unification, which would mean you you are indissolubly n whatever world you ate in.

This has never been about 'jumping' wholesale! I just used the word because there is no other.

You can use a phrase, or invent a word.