Re: Non-locality and MWI

2016-05-06 Thread Bruno Marchal
On 05 May 2016, at 22:40, Brent Meeker wrote: On 5/5/2016 5:57 AM, Bruno Marchal wrote: I will at the positive aspect. You seem to agree with the computationalist FPI. That is a progress. Now just reread Everett. Pure state evolves in pure state, and never becomes mixture in the MW.

Re: Non-locality and MWI

2016-05-06 Thread Bruno Marchal
On 06 May 2016, at 01:13, Bruce Kellett wrote: On 5/05/2016 10:57 pm, Bruno Marchal wrote: On 05 May 2016, at 01:31, Bruce Kellett wrote: This is where your fascination with the 1p-3p notion gets you into trouble. If the third person view (3p) means anything at all, it means simple

R: Re: R: Re: Non-locality and MWI

2016-05-06 Thread 'scerir' via Everything List
>Interesting, but my schedule makes it hard for me to analyse this just >now. Now, if you think you can argue for non-locality from Renninger >type of measurement, don't hesitate to show us. Here the point was >just that the violation of Bell's inequality does not lead to non- >local

Re: R: Re: Non-locality and MWI

2016-05-06 Thread Bruno Marchal
On 05 May 2016, at 19:43, 'scerir' via Everything List wrote: Bruno writes: Alice * (up + down) = Alice * up + Alice * down. If Alice look, as many times as she want at the up/down state of the particle, she will find up (and always up) *and* down and always down. The reason is that once she

Re: Non-locality and MWI

2016-05-06 Thread Bruce Kellett
On 7/05/2016 2:50 am, Bruno Marchal wrote: On 06 May 2016, at 01:13, Bruce Kellett wrote: There is a widely cited paper by Tipler (arxiv:quant-ph/0003146v1) that claims to show the MWI does away with non-locality. I read it a long time ago, but I have stopped to believe that MWI can be

Re: Non-locality and MWI

2016-05-06 Thread Bruce Kellett
On 7/05/2016 2:50 am, Bruno Marchal wrote: On 06 May 2016, at 01:13, Bruce Kellett wrote: But this does not work, as Feynman and Everett already explained with the double slit. In "Fabric of Reality" David Deutsch made it even clearer using for slits. You are confusing the Feynman paths of

Re: Non-locality and MWI

2016-05-06 Thread smitra
On 07-05-2016 02:36, Bruce Kellett wrote: The use of the relative orientation angle theta is intrinsically non-local. That angle cannot be obtained by local means in the above derivation. The equation for |psi> derived above shows the full coherent wave function as evolved from the initial