David Nyman wrote:
> On 23/06/07, *Brent Meeker* <[EMAIL PROTECTED] 
> <mailto:[EMAIL PROTECTED]>> wrote:
> BM:  But he could also switch from an account in terms of the machine 
> level causality to an account in terms of the computed 'world'.  In fact 
> he could switch back and forth.  Causality in the computed 'world' would 
> have it's corresponding causality in the machine and vice versa.  So I 
> don't see why they should be regarded as "orthogonal".
> DN:  Because the 'computational' description is arbitrary with respect 
> to the behaviour of the hardware.  It's merely an imputation, one of an 
> infinite set of such descriptions that could be imputed to the same 
> hardware behaviour.

True. But whatever interpretation was placed on the hardware behavior it would 
still have the same causal relations in it as the hardware.  Although there 
will be infinitely many possible interpretations, it's not the case that any 
description will do.  Changing the description would be analogous to changing 
the reference frame or the names on a map.  The two processes would still be 
parallel, not orthogonal.

Brent Meeker

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