Hmm. I still think you need rigor in how you know what differences are important and which are ignored. There is no such thing as actually identical universe-states across branches, so you're somehow collapsing different physical things into "same" experience.
If you asked how many movies does a person know on that, they'd likely say 1, because they're collapsing all the copies, which vary only trivially. If you ask "what's the probability that a randomly chosen disc in a used DVD store is Avatar", then the ratio of individual copies matters.
The purpose and type of comparison matters a lot in determining whether distinct things are fungible.
To be clear, I totally get that two experiences can be indistinguishable as anticipation or memory for an entity. I'm just not sure why it matters when counting universe-states for the purposes of a probability estimate.
Lets assume few things:
1. Many Worlds is real.
2. All identical consciousnesses measures as 1 in anthropics . So if we have set of consciousness: 1xA,1xB and 1000000xC, it is still 1/3 chance, to perceive being C.
Now say some intelligent being (i.e. human) starts another human brain simulation on silicon chip. The operations it does are all discrete, so despite the chip splitting in to many chips in many worlds, the simulated consciousness itself remain just 1 (because of #2 assumption).
But that is not true for human who started the simulation as he differs somehow in every Everett branch and reaches billions different consciousnesses really fast.
Is there some mistake in reasoning, that real persons should heavily outweigh simulations, despite, how many of them are running, given such assumptions?