Re: Philip Ball, MWI skeptic

2015-03-02 Thread meekerdb
On 3/2/2015 12:46 PM, LizR wrote: On 2 March 2015 at 17:24, Bruce Kellett bhkell...@optusnet.com.au mailto:bhkell...@optusnet.com.au wrote: Russell Standish wrote: On Sun, Mar 01, 2015 at 07:48:49PM -0800, meekerdb wrote: On 3/1/2015 6:29 PM, Russell Standish wrote:

Re: Philip Ball, MWI skeptic

2015-03-02 Thread Bruce Kellett
LizR wrote: Do superpositions still occur in the MWI? I thought they were supposed to be branches (which are perhaps able to recombine) ? Yes, we see superpositions everywhere -- as Brent says, they are a consequence of the mathematics of Hilbert space. A pure state in one basis is a

Re: FPI (was: Why is there something rather than nothing? From quantum theory to dialectics?

2015-03-02 Thread LizR
On 3 March 2015 at 05:23, John Clark johnkcl...@gmail.com wrote: On Mon, Mar 2, 2015 Kim Jones kimjo...@ozemail.com.au wrote: Ambiguity is some kind of disease, is it? Well...it doesn't exactly help in developing a logically healthy mind. Aren't you just expressing your distaste for

Re: Philip Ball, MWI skeptic

2015-03-02 Thread LizR
Thanks. I hasten to add that I do already have a dead-tree edition, and possibly even a screaming roses one, but not to hand. On 3 March 2015 at 15:33, Russell Standish li...@hpcoders.com.au wrote: http://www.hpcoders.com.au/nothing.html: contains link to a free PDF download, and otherwise

Re: Philip Ball, MWI skeptic

2015-03-02 Thread Jason Resch
On Monday, March 2, 2015, meekerdb meeke...@verizon.net wrote: On 3/2/2015 5:36 AM, Jason Resch wrote: On Sun, Mar 1, 2015 at 11:33 PM, meekerdb meeke...@verizon.net wrote: On 2/28/2015 11:25 AM, Jason Resch wrote: The best text on non-relativistic QM is by Asher Peres and it's

Re: Philip Ball, MWI skeptic

2015-03-02 Thread Russell Standish
http://www.hpcoders.com.au/nothing.html: contains link to a free PDF download, and otherwise links to paid versions (eg dead tree, Kindle). You want appendix D. Also see http://www.arxiv.org/abs/physics/0001020 On Tue, Mar 03, 2015 at 03:00:13PM +1300, LizR wrote: On 3 March 2015 at 14:54,

2 Natural Philosophers Discuss the Mind

2015-03-02 Thread LizR
http://www.scientificamerican.com/article/2-natural-philosophers-discuss-the-mind (...they decide it's still a Hard Problem). -- You received this message because you are subscribed to the Google Groups Everything List group. To unsubscribe from this group and stop receiving emails from it,

Re: Philip Ball, MWI skeptic

2015-03-02 Thread Jason Resch
Maybe that's enough though, to implement a brain and observer, that they stop interfering in at least one basis (assuming they're not contradictory, might all bases exist?) Jason On Monday, March 2, 2015, Bruce Kellett bhkell...@optusnet.com.au wrote: LizR wrote: Do superpositions still occur

Re: Philip Ball, MWI skeptic

2015-03-02 Thread LizR
On 3 March 2015 at 14:54, Jason Resch jasonre...@gmail.com wrote: It's available for free on Russell's website. That part is only a few pages long, I am still trying to understand it myself, but I think it could be one of the most significant breakthroughs in science if it's sound. For

Re: Philip Ball, MWI skeptic

2015-03-02 Thread Russell Standish
On Mon, Mar 02, 2015 at 09:18:07PM -0500, John Clark wrote: The great thing about all this is that unlike Copenhagen the MWI does't need to explain what a observer or a observation is. That could be the source of all the difficulties wrt Born's rule. --

Re: Philip Ball, MWI skeptic

2015-03-02 Thread Bruce Kellett
Jason Resch wrote: Maybe that's enough though, to implement a brain and observer, that they stop interfering in at least one basis (assuming they're not contradictory, might all bases exist?) Given an arbitrary density matrix, there is always a basis in which the off-diagonal terms vanish

Re: Philip Ball, MWI skeptic

2015-03-02 Thread John Clark
On Mon, Mar 2, 2015 at 3:46 PM, LizR lizj...@gmail.com wrote: Do superpositions still occur in the MWI? I thought they were supposed to be branches (which are perhaps able to recombine) ? In the MWI a branching can only occur if there is a difference between 2 universes, for example if a

Re: Philip Ball, MWI skeptic

2015-03-02 Thread Jason Resch
On Mon, Mar 2, 2015 at 8:33 PM, Russell Standish li...@hpcoders.com.au wrote: http://www.hpcoders.com.au/nothing.html: contains link to a free PDF download, and otherwise links to paid versions (eg dead tree, Kindle). You want appendix D. Also see http://www.arxiv.org/abs/physics/0001020

Re: Philip Ball, MWI skeptic

2015-03-02 Thread meekerdb
On 3/2/2015 5:49 PM, Jason Resch wrote: Maybe that's enough though, to implement a brain and observer, that they stop interfering in at least one basis (assuming they're not contradictory, might all bases exist?) Bases are just coordinate systems for Hilbert space. We choose them. Of

Re: Philip Ball, MWI skeptic

2015-03-02 Thread Russell Standish
On Mon, Mar 02, 2015 at 07:52:57PM -0800, meekerdb wrote: On 3/2/2015 5:49 PM, Jason Resch wrote: Maybe that's enough though, to implement a brain and observer, that they stop interfering in at least one basis (assuming they're not contradictory, might all bases exist?) Bases are just

Re: Philip Ball, MWI skeptic

2015-03-02 Thread Bruce Kellett
Russell Standish wrote: On Mon, Mar 02, 2015 at 07:52:57PM -0800, meekerdb wrote: On 3/2/2015 5:49 PM, Jason Resch wrote: Maybe that's enough though, to implement a brain and observer, that they stop interfering in at least one basis (assuming they're not contradictory, might all bases exist?)

Re: Philip Ball, MWI skeptic

2015-03-02 Thread meekerdb
On 3/2/2015 6:18 PM, John Clark wrote: On Mon, Mar 2, 2015 at 3:46 PM, LizR lizj...@gmail.com mailto:lizj...@gmail.com wrote: Do superpositions still occur in the MWI? I thought they were supposed to be branches (which are perhaps able to recombine) ? In the MWI a branching can

Re: Philip Ball, MWI skeptic

2015-03-02 Thread LizR
On 2 March 2015 at 17:24, Bruce Kellett bhkell...@optusnet.com.au wrote: Russell Standish wrote: On Sun, Mar 01, 2015 at 07:48:49PM -0800, meekerdb wrote: On 3/1/2015 6:29 PM, Russell Standish wrote: I remain unconvinced that that probabilities are undefined. Tegmark gave an interesting

Re: Philip Ball, MWI skeptic

2015-03-02 Thread LizR
On 2 March 2015 at 17:33, John Clark johnkcl...@gmail.com wrote: there is no non-local influence in the violation of Bell's inequality. Maybe, if so then things are not realistic or not deterministic or both. Or the relevant laws of physics are time symmetric. -- You received this message

Re: FPI (was: Why is there something rather than nothing? From quantum theory to dialectics?

2015-03-02 Thread Jason Resch
On Sun, Mar 1, 2015 at 9:50 PM, John Clark johnkcl...@gmail.com wrote: On Sun, Mar 1, 2015 at 4:16 PM, LizR lizj...@gmail.com wrote: Who's personal experience? Bruno makes it clear that he only considers what someone writes in a diary as being what counts for the purposes of the

Re: Philip Ball, MWI skeptic

2015-03-02 Thread Jason Resch
On Sun, Mar 1, 2015 at 11:33 PM, meekerdb meeke...@verizon.net wrote: On 2/28/2015 11:25 AM, Jason Resch wrote: The best text on non-relativistic QM is by Asher Peres and it's available *free* online.

Re: FPI (was: Why is there something rather than nothing? From quantum theory to dialectics?

2015-03-02 Thread John Clark
On Mon, Mar 2, 2015 Kim Jones kimjo...@ozemail.com.au wrote: Ambiguity is some kind of disease, is it? Well...it doesn't exactly help in developing a logically healthy mind. Aren't you just expressing your distaste for such things? Yes and no. John K Clark -- You received this

Re: Philip Ball, MWI skeptic

2015-03-02 Thread meekerdb
On 3/2/2015 5:36 AM, Jason Resch wrote: On Sun, Mar 1, 2015 at 11:33 PM, meekerdb meeke...@verizon.net mailto:meeke...@verizon.net wrote: On 2/28/2015 11:25 AM, Jason Resch wrote: The best text on non-relativistic QM is by Asher Peres and it's available