[ExI] Many Worlds (was: A Simulation Argument)

[Vladimir Nesov]

On Jan 16, 2008 1:50 PM, Stathis Papaioannou <stathisp at gmail.com> wrote:
>
> It's important to point out (on my understanding of what Lee is
> saying) that the worlds don't actually halve, double or undergo any
> other special process at all when the "split" occurs. Say there are
> two identical versions of you, A and B, contemplating a quantum coin
> toss. Because A and B are identical, there is no way for you to say
> that you are one or the other. After the coin toss, A sees heads and B
> sees tails. From a God's eye view, the two parallel worlds of A and B
> continue, with different things happening in each one. This is like
> the deterministic, unitary evolution of the wave function. But from
> your point of view, you have a 1/2 chance of observing that the coin
> comes up heads or tails. This is like the subjective appearance of a
> truly random wave function "collapse". So there is no collapse, no
> splitting or duplication, and no truly random (or equivalently,
> uncaused) events; but for an observer embedded in the system, it looks
> as if there is.
>

Or, generalizing, there are no separate worlds. You 'select' specific
properties of world that you observe from overall collection of
interacting elements, ones that interacts with (and thus are observed
by) given subsystem considering itself to be you.


-- 
Vladimir Nesov                            mailto:robotact at gmail.com