[ExI] A Simulation Argument

scerir scerir at libero.it
Sun Jan 6 09:14:39 UTC 2008


From: "Ian Goddard" 
> [1] Definition of 'real external world' : observable
> area outside an observer the fundamental components of
> which exist as they are observed by the observer
> independently of the observer's observation of them.

I don't realize the difference between
simulationism and other religions (like Islam, 
or Christianity). 

But the concept of 'real' external world
is not an easy one. Even the usual definition
of external physical 'reality' [1] appears
to be flawed in many ways (disturbing a
system ... can predict with certainty ...).

Everettistas might say that MWI perfectly
describes an external physical reality,
according to the definition given below. 
(The first formulation, the relative state, 
does not seem to describe an 'external' 
reality though). It is a bit disturbing that
MWI can be considered a 'realistic' theory,
since it predicts a different value of a physical 
quantity in every single world. 

[1] If, without in any way disturbing a system, 
an observer can predict with certainty 
the value of a physical quantity, then 
there exists an element of physical 'reality' 
corresponding to this physical quantity.




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