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Jonathan_Graehl comments on Poll: What value extra copies? - Less Wrong
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I'm interested, but suspicious of fraud - how do I know the copy really exists?
Also, it seems like as posed, my copies will live in identical universes and have identical futures as well as present state - i.e. I'm making an exact copy of everyone and everything else as well. If that's the offer, then I'd need more information about the implications of universe cloning. If there are none, then the question seems like nonsense to me.
I was only initially interested at the thought of my copies diverging, even without interaction (I suppose MWI implies this is what goes on behind the scenes all the time).
If the other universe(s) are simulated inside our own, then there may be relevant differences between the simulating universe and the simulated ones.
In particular, how do we create universes identical to the 'master copy'? The easiest way is to observe our universe, and run the simulations a second behind, reproducing whatever we observe. That would mean decisions in our universe control events in the simulated worlds, so they have different weights under some decision theories.
I assumed we couldn't observe our copies, because if we could, then they'd be observing them too. In other words, somebody's experience of observing a copy would have to be fake - just a view of their present reality and not of a distinct copy.
This all follows from the setup, where there can be no difference between a copy (+ its environment) and the original. It's hard to think about what value that has.