On Friday, April 20, 2018 at 12:44:04 AM UTC, Brent wrote:
>
>
>
> On 4/19/2018 5:29 PM, smitra wrote: 
> > One can a priori rule out any non-local effects using the fact that 
> > the dynamics as described by the Schrödinger equation is local. So, in 
> > any theory where there is no collapse and everything follows from only 
> > the Schrödinger equation, there cannot be non-local effects 
>
> The wave-function exists in configuration space so a point in it already 
> refers to multiple points in 3space. 
>
> Brent 
>

I've met WF's with variables of space and time. They don't have multiple
points in 3 space. Please elaborate as to your meaning. AG 

>
> > other than due to common cause effects. Then suppose that in an 
> > example where things are simplified to allow for Alice and Bob thought 
> > experiments to be discussed without having to rigorously show how 
> > Alice, Bob and the experimental apparatus used are to be extracted 
> > from the wavefunction one does see non-local effects, then  it follows 
> > that these non-local effects are artifacts of these simplifications. 
> > Now, in standard quantum mechanics one does routinely make such 
> > simplifying assumptions, this allows for QM to be useful as a 
> > practical theory, but we then also know that strictly speaking, it's 
> > not how Nature really works. 
>
>

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