Re: Infinite universe

From: Eliezer S. Yudkowsky (
Date: Sun Apr 27 2003 - 13:42:37 MDT

Ben Goertzel wrote:
> It's easy to hypothesize a bunch of possible worlds different from our
> own -- but are they hypothetical or are they "real"? What does "real"
> actually mean?
> As a Peircean pragmatist, my question is: What measurement could I make,
> whose result would come out differently if these other universe existed,
> versus if they did not exist?

Any Process which contains you up until this point, or Bayesia up until
this point, *not* with a hands-off condition, affects your future
subjective probabilities because you might turn out to be living there -
you cannot distinguish Bens in "interventionist simulations" from Bens in
"top-level Bayesia" or "hands-off simulated Bayesia". "You" are a pointer
state that refers to all the hubble volumes, universes, quantum branches,
simulations, and Processes that have faithfully computed Ben Goertzel up
to this point.

Eliezer S. Yudkowsky                
Research Fellow, Singularity Institute for Artificial Intelligence

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