Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-15 Thread spudboy100 via Everything List
The understanding of modal realism may be indicated from the results of this graphene experiment. It seems to postulate a twin, tidally locked world duo. It is, as it were, Everett's MWI interacting, perhaps down on Planck-ville?

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-15 Thread Brent Meeker
On 5/15/2022 12:11 AM, smitra wrote: On 15-05-2022 00:55, Bruce Kellett wrote: On Sun, May 15, 2022 at 1:17 AM smitra wrote: On 13-05-2022 21:59, Brent Meeker wrote: Right CI doesn't explain the collapse and MWI doesn't explain the collapse either but assumes it can be explained without

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-15 Thread Bruce Kellett
On Sun, May 15, 2022 at 5:53 PM smitra wrote: > On 15-05-2022 09:30, Bruce Kellett wrote: > > On Sun, May 15, 2022 at 5:11 PM smitra wrote: > > > >> On 15-05-2022 00:55, Bruce Kellett wrote: > >>> On Sun, May 15, 2022 at 1:17 AM smitra wrote: > >>> > >>> > >>> Yes. And decoherence says that

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-15 Thread John Clark
On Sat, May 14, 2022 at 6:45 PM Bruce Kellett wrote: *> As I have pointed out, no finite number can be "sufficiently large". You > need an infinite number of branches,* I have no idea how you figured that. > *> the SE only ever predicts a finite number of branches. * That depends on the

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-15 Thread smitra
On 15-05-2022 09:30, Bruce Kellett wrote: On Sun, May 15, 2022 at 5:11 PM smitra wrote: On 15-05-2022 00:55, Bruce Kellett wrote: On Sun, May 15, 2022 at 1:17 AM smitra wrote: The big advantage is that decoherence is a well researched area of (mathematical) physics, results like the

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-15 Thread smitra
On 15-05-2022 05:11, Brent Meeker wrote: On 5/14/2022 3:55 PM, Bruce Kellett wrote: On Sun, May 15, 2022 at 1:17 AM smitra wrote: On 13-05-2022 21:59, Brent Meeker wrote: Right CI doesn't explain the collapse and MWI doesn't explain the collapse either but assumes it can be explained

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-15 Thread Bruce Kellett
On Sun, May 15, 2022 at 5:11 PM smitra wrote: > On 15-05-2022 00:55, Bruce Kellett wrote: > > On Sun, May 15, 2022 at 1:17 AM smitra wrote: > > > >> The big advantage is that decoherence is a well researched area of > >> (mathematical) physics, results like the density matrix becoming > >>

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-15 Thread smitra
On 15-05-2022 00:55, Bruce Kellett wrote: On Sun, May 15, 2022 at 1:17 AM smitra wrote: On 13-05-2022 21:59, Brent Meeker wrote: Right CI doesn't explain the collapse and MWI doesn't explain the collapse either but assumes it can be explained without new physics. I hypothesize (not

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-15 Thread smitra
On 14-05-2022 21:11, Brent Meeker wrote: On 5/14/2022 8:16 AM, smitra wrote: On 13-05-2022 21:59, Brent Meeker wrote: On 5/13/2022 12:32 PM, smitra wrote: On 12-05-2022 22:27, Brent Meeker wrote: On 5/12/2022 11:42 AM, smitra wrote: All that the experiments demonstrate is that the wave

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-14 Thread Brent Meeker
On 5/14/2022 3:55 PM, Bruce Kellett wrote: On Sun, May 15, 2022 at 1:17 AM smitra wrote: On 13-05-2022 21:59, Brent Meeker wrote: > Right CI doesn't explain the collapse and MWI doesn't explain the > collapse either but assumes it can be explained without new physics. >

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-14 Thread Bruce Kellett
On Sun, May 15, 2022 at 1:17 AM smitra wrote: > On 13-05-2022 21:59, Brent Meeker wrote: > > > Right CI doesn't explain the collapse and MWI doesn't explain the > > collapse either but assumes it can be explained without new physics. > > I hypothesize (not assume) that CI+ can > > explain the

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-14 Thread Bruce Kellett
On Sun, May 15, 2022 at 5:03 AM Brent Meeker wrote: > On 5/14/2022 4:35 AM, Bruce Kellett wrote: > > > The trouble is that the duplicating machine makes only one copy, so there > is one for Moscow and one for Helsinki. There are no multiple copies in the > original scenario. Changing the nature

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-14 Thread John Clark
On Sat, May 14, 2022 at 3:03 PM Brent Meeker wrote: > *I think it's possible to do it *[assign probabilities] *with branch > counting if you assume some sufficiently large number are available to > split...but that's not much different than assigning amplitudes.* Agreed. John K ClarkSee

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-14 Thread Brent Meeker
On 5/14/2022 8:16 AM, smitra wrote: On 13-05-2022 21:59, Brent Meeker wrote: On 5/13/2022 12:32 PM, smitra wrote: On 12-05-2022 22:27, Brent Meeker wrote: On 5/12/2022 11:42 AM, smitra wrote: All that the experiments demonstrate is that the wave function evolves unitarily between state

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-14 Thread Brent Meeker
On 5/14/2022 4:35 AM, Bruce Kellett wrote: On Sat, May 14, 2022 at 9:19 PM John Clark wrote: On Fri, May 13, 2022 at 10:41 PM Bruce Kellett wrote: >> After my body has been duplicated but before I have open the door of the duplicating chamber to see where I

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-14 Thread smitra
On 14-05-2022 03:06, Bruce Kellett wrote: On Sat, May 14, 2022 at 5:51 AM smitra wrote: On 12-05-2022 22:18, Brent Meeker wrote: I agree. And in fact SE fails all the time. It fails to predict a definite outcome...which is OK if you accept probabilistic theories. Physics doesn't work

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-14 Thread smitra
On 13-05-2022 22:06, Brent Meeker wrote: On 5/13/2022 11:47 AM, smitra wrote: On 12-05-2022 22:18, Brent Meeker wrote: On 5/12/2022 11:17 AM, smitra wrote: On 11-05-2022 23:02, Brent Meeker wrote: On 5/11/2022 11:51 AM, smitra wrote: On 11-05-2022 07:25, Bruce Kellett wrote: On Wed, May

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-14 Thread smitra
On 13-05-2022 21:59, Brent Meeker wrote: On 5/13/2022 12:32 PM, smitra wrote: On 12-05-2022 22:27, Brent Meeker wrote: On 5/12/2022 11:42 AM, smitra wrote: All that the experiments demonstrate is that the wave function evolves unitarily between state preparation and measurement. This is most

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-14 Thread John Clark
On Sat, May 14, 2022 at 7:35 AM Bruce Kellett wrote: *>>> So how do you accommodate a situation in which there is a 90% chance >>> of seeing Moscow and a 10% chance of seeing Helsinki?* >>> >> >> >> You've asked that exact same question several times before so I'll >> answer it the exact same

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-14 Thread John Clark
On Sat, May 14, 2022 at 2:27 AM Quentin Anciaux wrote: *> It has taken almost 20 years, but finally you acknowledge first person > indeterminacy...* Well I have always acknowledged that if a conscious brain is exactly duplicated then there is only 1 conscious experience not 2 because the 2

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-14 Thread Bruce Kellett
On Sat, May 14, 2022 at 9:19 PM John Clark wrote: > On Fri, May 13, 2022 at 10:41 PM Bruce Kellett > wrote: > > >> After my body has been duplicated but before I have open the door of >>> the duplicating chamber to see where I was I won't know if I will be >>> the John Clark who has seen Moscow

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-14 Thread John Clark
On Fri, May 13, 2022 at 10:41 PM Bruce Kellett wrote: >> After my body has been duplicated but before I have open the door of the >> duplicating chamber to see where I was I won't know if I will be the >> John Clark who has seen Moscow or the John Clark who has seen Helsinki, and >> indeed the

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-14 Thread Stathis Papaioannou
On Sat, 14 May 2022 at 12:06, John Clark wrote: > On Fri, May 13, 2022 at 9:46 PM Stathis Papaioannou > wrote: > > *>>> Explaining the values of the probabilities isn't the problem with MWI, it's explaining that there are probabilities* >>> >>> >>> >> That's easy in MWI. Probabilities

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-14 Thread Quentin Anciaux
Le sam. 14 mai 2022, 04:06, John Clark a écrit : > On Fri, May 13, 2022 at 9:46 PM Stathis Papaioannou > wrote: > > *>>> Explaining the values of the probabilities isn't the problem with MWI, it's explaining that there are probabilities* >>> >>> >>> >> That's easy in MWI. Probabilities

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-13 Thread Bruce Kellett
On Sat, May 14, 2022 at 12:06 PM John Clark wrote: > On Fri, May 13, 2022 at 9:46 PM Stathis Papaioannou > wrote: > > *>>> Explaining the values of the probabilities isn't the problem with MWI, it's explaining that there are probabilities* >>> >>> >>> >> That's easy in MWI. Probabilities

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-13 Thread John Clark
On Fri, May 13, 2022 at 9:46 PM Stathis Papaioannou wrote: *>>> Explaining the values of the probabilities isn't the problem with >>> MWI, it's explaining that there are probabilities* >> >> >> >> That's easy in MWI. Probabilities exist because until you actually >> look at it there is no way

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-13 Thread Stathis Papaioannou
On Fri, 13 May 2022 at 22:09, John Clark wrote: > > On Thu, May 12, 2022 at 4:27 PM Brent Meeker > wrote: > > *> Explaining the values of the probabilities isn't the problem with MWI, >> it's explaining that there are probabilities* > > > That's easy in MWI. Probabilities exist because until

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-13 Thread Bruce Kellett
On Sat, May 14, 2022 at 5:51 AM smitra wrote: > On 12-05-2022 22:18, Brent Meeker wrote: > > > > I agree. And in fact SE fails all the time. It fails to predict a > > definite outcome...which is OK if you accept probabilistic theories. > > Physics doesn't work in this way. You always need to

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-13 Thread Brent Meeker
On 5/13/2022 11:47 AM, smitra wrote: On 12-05-2022 22:18, Brent Meeker wrote: On 5/12/2022 11:17 AM, smitra wrote: On 11-05-2022 23:02, Brent Meeker wrote: On 5/11/2022 11:51 AM, smitra wrote: On 11-05-2022 07:25, Bruce Kellett wrote: On Wed, May 11, 2022 at 3:11 PM smitra wrote: On

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-13 Thread Brent Meeker
On 5/13/2022 12:32 PM, smitra wrote: On 12-05-2022 22:27, Brent Meeker wrote: On 5/12/2022 11:42 AM, smitra wrote: All that the experiments demonstrate is that the wave function evolves unitarily between state preparation and measurement. This is most easily accounted for by assuming that

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-13 Thread smitra
On 12-05-2022 22:18, Brent Meeker wrote: On 5/12/2022 11:17 AM, smitra wrote: On 11-05-2022 23:02, Brent Meeker wrote: On 5/11/2022 11:51 AM, smitra wrote: On 11-05-2022 07:25, Bruce Kellett wrote: On Wed, May 11, 2022 at 3:11 PM smitra wrote: On 11-05-2022 06:06, Bruce Kellett wrote: On

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-13 Thread smitra
On 13-05-2022 14:08, John Clark wrote: On Thu, May 12, 2022 at 4:27 PM Brent Meeker wrote: _> Explaining the values of the probabilities isn't the problem with MWI, it's explaining that there ARE probabilities_ That's easy in MWI. Probabilities exist because until you actually look at it

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-13 Thread smitra
On 13-05-2022 02:58, Bruce Kellett wrote: On Fri, May 13, 2022 at 5:22 AM smitra wrote: On 12-05-2022 00:44, Brent Meeker wrote: On 5/11/2022 1:06 PM, smitra wrote: There is effective collapse in experiments we do, but the experiments nevertheless demonstrate that the fundamental

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-13 Thread smitra
On 13-05-2022 02:50, Bruce Kellett wrote: On Fri, May 13, 2022 at 5:57 AM smitra wrote: On 12-05-2022 01:36, Bruce Kellett wrote: On Thu, May 12, 2022 at 9:24 AM smitra wrote: On 11-05-2022 07:30, Bruce Kellett wrote: Who proved that the universe was finite? If it's infinite, one can

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-13 Thread smitra
On 12-05-2022 22:39, Brent Meeker wrote: On 5/12/2022 12:08 PM, smitra wrote: On 12-05-2022 01:46, Bruce Kellett wrote: On Thu, May 12, 2022 at 9:08 AM smitra wrote: On 11-05-2022 08:14, Bruce Kellett wrote: On Wed, May 11, 2022 at 3:39 PM Brent Meeker wrote: On 5/10/2022 9:43 PM,

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-13 Thread smitra
On 12-05-2022 22:27, Brent Meeker wrote: On 5/12/2022 11:42 AM, smitra wrote: All that the experiments demonstrate is that the wave function evolves unitarily between state preparation and measurement. This is most easily accounted for by assuming that the wave function is a purely epistemic

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-13 Thread smitra
On 12-05-2022 22:23, Brent Meeker wrote: On 5/12/2022 11:27 AM, smitra wrote: On 12-05-2022 00:44, Brent Meeker wrote: On 5/11/2022 1:06 PM, smitra wrote: That's complete and audacious question begging.  What you mean by "real" is "modeled within the SE".  There is NOTHING BUT collapse

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-13 Thread John Clark
On Thu, May 12, 2022 at 4:27 PM Brent Meeker wrote: *> Explaining the values of the probabilities isn't the problem with MWI, > it's explaining that there are probabilities* That's easy in MWI. Probabilities exist because until you actually look at it there is no way to know if you are the

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-12 Thread Bruce Kellett
On Fri, May 13, 2022 at 5:22 AM smitra wrote: > On 12-05-2022 00:44, Brent Meeker wrote: > > On 5/11/2022 1:06 PM, smitra wrote: > > > >> There is effective collapse in experiments we do, but the > >> experiments nevertheless demonstrate that the fundamental processes > >> proceed under unitary

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-12 Thread Bruce Kellett
On Fri, May 13, 2022 at 5:57 AM smitra wrote: > On 12-05-2022 01:36, Bruce Kellett wrote: > > On Thu, May 12, 2022 at 9:24 AM smitra wrote: > > > >> On 11-05-2022 07:30, Bruce Kellett wrote: > >>> Who proved that the universe was finite? > >> > >> If it's infinite, one can focus on only the

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-12 Thread Brent Meeker
On 5/12/2022 12:08 PM, smitra wrote: On 12-05-2022 01:46, Bruce Kellett wrote: On Thu, May 12, 2022 at 9:08 AM smitra wrote: On 11-05-2022 08:14, Bruce Kellett wrote: On Wed, May 11, 2022 at 3:39 PM Brent Meeker wrote: On 5/10/2022 9:43 PM, smitra wrote: If there are only a finite

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-12 Thread Brent Meeker
On 5/12/2022 11:42 AM, smitra wrote: All that the experiments demonstrate is that the wave function evolves unitarily between state preparation and measurement. This is most easily accounted for by assuming that the wave function is a purely epistemic vehicle for the time evolution of

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-12 Thread Brent Meeker
On 5/12/2022 11:27 AM, smitra wrote: On 12-05-2022 00:44, Brent Meeker wrote: On 5/11/2022 1:06 PM, smitra wrote: That's complete and audacious question begging.  What you mean by "real" is "modeled within the SE".  There is NOTHING BUT collapse experimentally; every result recorded in

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-12 Thread Brent Meeker
On 5/12/2022 11:17 AM, smitra wrote: On 11-05-2022 23:02, Brent Meeker wrote: On 5/11/2022 11:51 AM, smitra wrote: On 11-05-2022 07:25, Bruce Kellett wrote: On Wed, May 11, 2022 at 3:11 PM smitra wrote: On 11-05-2022 06:06, Bruce Kellett wrote: On Wed, May 11, 2022 at 1:56 PM smitra

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-12 Thread smitra
On 12-05-2022 01:46, Bruce Kellett wrote: On Thu, May 12, 2022 at 9:08 AM smitra wrote: On 11-05-2022 08:14, Bruce Kellett wrote: On Wed, May 11, 2022 at 3:39 PM Brent Meeker wrote: On 5/10/2022 9:43 PM, smitra wrote: If there are only a finite number of states the entire universe

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-12 Thread smitra
On 12-05-2022 01:36, Bruce Kellett wrote: On Thu, May 12, 2022 at 9:24 AM smitra wrote: On 11-05-2022 07:30, Bruce Kellett wrote: Who proved that the universe was finite? If it's infinite, one can focus on only the visible part of it. The visible part is only locally defined -- go to

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-12 Thread smitra
On 12-05-2022 01:01, Bruce Kellett wrote: On Thu, May 12, 2022 at 8:36 AM smitra wrote: On 11-05-2022 07:42, Brent Meeker wrote: That's complete and audacious question begging. What you mean by "real" is "modeled within the SE". There is NOTHING BUT collapse experimentally; every result

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-12 Thread smitra
On 12-05-2022 00:44, Brent Meeker wrote: On 5/11/2022 1:06 PM, smitra wrote: That's complete and audacious question begging. What you mean by "real" is "modeled within the SE". There is NOTHING BUT collapse experimentally; every result recorded in every notebook and every tape is evidence of

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-12 Thread smitra
On 11-05-2022 23:02, Brent Meeker wrote: On 5/11/2022 11:51 AM, smitra wrote: On 11-05-2022 07:25, Bruce Kellett wrote: On Wed, May 11, 2022 at 3:11 PM smitra wrote: On 11-05-2022 06:06, Bruce Kellett wrote: On Wed, May 11, 2022 at 1:56 PM smitra wrote: On 09-05-2022 00:34, Bruce

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-11 Thread Bruce Kellett
On Thu, May 12, 2022 at 9:08 AM smitra wrote: > On 11-05-2022 08:14, Bruce Kellett wrote: > > On Wed, May 11, 2022 at 3:39 PM Brent Meeker > > wrote: > > > >> On 5/10/2022 9:43 PM, smitra wrote: > >> > >>> If there are only a finite number of states the entire universe can be > >>> in, then

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-11 Thread Bruce Kellett
On Thu, May 12, 2022 at 9:24 AM smitra wrote: > On 11-05-2022 07:30, Bruce Kellett wrote: > > > > Who proved that the universe was finite? > > > > If it's infinite, one can focus on only the visible part of it. > The visible part is only locally defined -- go to the edge and there is another,

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-11 Thread smitra
On 11-05-2022 07:30, Bruce Kellett wrote: On Wed, May 11, 2022 at 3:16 PM smitra wrote: On 11-05-2022 06:01, Bruce Kellett wrote: On Wed, May 11, 2022 at 1:51 PM smitra wrote: On 09-05-2022 00:42, Bruce Kellett wrote: Such models are certainly inconsistent with the SE. So if your

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-11 Thread smitra
On 11-05-2022 07:28, Brent Meeker wrote: On 5/10/2022 8:17 PM, smitra wrote: On 09-05-2022 00:42, Bruce Kellett wrote: On Mon, May 9, 2022 at 6:37 AM smitra wrote: On 08-05-2022 05:58, Bruce Kellett wrote: It is when you take the SE to imply that all possible outcomes exist on each

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-11 Thread smitra
On 11-05-2022 08:14, Bruce Kellett wrote: On Wed, May 11, 2022 at 3:39 PM Brent Meeker wrote: On 5/10/2022 9:43 PM, smitra wrote: If there are only a finite number of states the entire universe can be in, then that's also true for observers. So what does the SE for this discrete

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-11 Thread Bruce Kellett
On Thu, May 12, 2022 at 8:36 AM smitra wrote: > On 11-05-2022 07:42, Brent Meeker wrote: > > > > That's complete and audacious question begging. What you mean by > > "real" is "modeled within the SE". There is NOTHING BUT collapse > > experimentally; every result recorded in every notebook and

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-11 Thread Brent Meeker
On 5/11/2022 1:06 PM, smitra wrote: That's complete and audacious question begging.  What you mean by "real" is "modeled within the SE".  There is NOTHING BUT collapse experimentally; every result recorded in every notebook and every tape is evidence of a collapse. There is effective

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-11 Thread smitra
On 11-05-2022 07:42, Brent Meeker wrote: On 5/10/2022 9:47 PM, smitra wrote: On 11-05-2022 06:06, Bruce Kellett wrote: On Wed, May 11, 2022 at 1:56 PM smitra wrote: On 09-05-2022 00:34, Bruce Kellett wrote: That still treats the SE as indubitally true. No theory in physics is

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-11 Thread smitra
On 11-05-2022 07:25, Brent Meeker wrote: On 5/10/2022 8:11 PM, smitra wrote: On 09-05-2022 00:34, Bruce Kellett wrote: On Mon, May 9, 2022 at 6:52 AM smitra wrote: On 08-05-2022 06:04, Bruce Kellett wrote: On Sun, May 8, 2022 at 11:21 AM smitra wrote: The issues with branches etc. are

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-11 Thread smitra
On 11-05-2022 07:39, Brent Meeker wrote: On 5/10/2022 9:43 PM, smitra wrote: On 11-05-2022 06:01, Bruce Kellett wrote: On Wed, May 11, 2022 at 1:51 PM smitra wrote: On 09-05-2022 00:42, Bruce Kellett wrote: Such models are certainly inconsistent with the SE. So if your concern is that

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-11 Thread Brent Meeker
On 5/11/2022 11:51 AM, smitra wrote: On 11-05-2022 07:25, Bruce Kellett wrote: On Wed, May 11, 2022 at 3:11 PM smitra wrote: On 11-05-2022 06:06, Bruce Kellett wrote: On Wed, May 11, 2022 at 1:56 PM smitra wrote: On 09-05-2022 00:34, Bruce Kellett wrote: That still treats the SE as

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-11 Thread smitra
On 11-05-2022 07:25, Bruce Kellett wrote: On Wed, May 11, 2022 at 3:11 PM smitra wrote: On 11-05-2022 06:06, Bruce Kellett wrote: On Wed, May 11, 2022 at 1:56 PM smitra wrote: On 09-05-2022 00:34, Bruce Kellett wrote: That still treats the SE as indubitally true. No theory in physics

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-11 Thread Brent Meeker
On 5/10/2022 11:14 PM, Bruce Kellett wrote: On Wed, May 11, 2022 at 3:39 PM Brent Meeker wrote: On 5/10/2022 9:43 PM, smitra wrote: > If there are only a finite number of states the entire universe can be > in, then that's also true for observers. So what does the SE

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-11 Thread John Clark
On Wed, May 11, 2022 at 1:25 AM Brent Meeker wrote: > > * > Well, there's a big fat hint that it [SE] breaks down FAPP in every > measurement, in every bit of physics that appears classical and > irreversible. * The thing is, whenever somebody says FAPP they really don't mean for *ALL*

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-11 Thread John Clark
On Wed, May 11, 2022 at 1:25 AM Bruce Kellett wrote: *> The SE also has many problems* The Schrodinger equation has ONE problem, SE can't account for gravity; General Relativity can but GR can't account for anything else. Maybe when we find one physical idea that covers everything it will

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-11 Thread Bruce Kellett
On Wed, May 11, 2022 at 3:39 PM Brent Meeker wrote: > On 5/10/2022 9:43 PM, smitra wrote: > > > If there are only a finite number of states the entire universe can be > > in, then that's also true for observers. > > So what does the SE for this discrete universe look like? The one every > cites

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-10 Thread Brent Meeker
On 5/10/2022 9:47 PM, smitra wrote: On 11-05-2022 06:06, Bruce Kellett wrote: On Wed, May 11, 2022 at 1:56 PM smitra wrote: On 09-05-2022 00:34, Bruce Kellett wrote: That still treats the SE as indubitally true. No theory in physics is 'indubitably true'. The Everett program is to

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-10 Thread Brent Meeker
On 5/10/2022 9:43 PM, smitra wrote: On 11-05-2022 06:01, Bruce Kellett wrote: On Wed, May 11, 2022 at 1:51 PM smitra wrote: On 09-05-2022 00:42, Bruce Kellett wrote: Such models are certainly inconsistent with the SE. So if your concern is that the SE does not contain provision for a

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-10 Thread Bruce Kellett
On Wed, May 11, 2022 at 3:16 PM smitra wrote: > On 11-05-2022 06:01, Bruce Kellett wrote: > > On Wed, May 11, 2022 at 1:51 PM smitra wrote: > > > >> On 09-05-2022 00:42, Bruce Kellett wrote: > >>> > >>> Such models are certainly inconsistent with the SE. So if your concern > >>> is that the SE

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-10 Thread Brent Meeker
On 5/10/2022 8:17 PM, smitra wrote: On 09-05-2022 00:42, Bruce Kellett wrote: On Mon, May 9, 2022 at 6:37 AM smitra wrote: On 08-05-2022 05:58, Bruce Kellett wrote: It is when you take the SE to imply that all possible outcomes exist on each trial. That gives all outcomes equal

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-10 Thread Brent Meeker
On 5/10/2022 8:11 PM, smitra wrote: On 09-05-2022 00:34, Bruce Kellett wrote: On Mon, May 9, 2022 at 6:52 AM smitra wrote: On 08-05-2022 06:04, Bruce Kellett wrote: On Sun, May 8, 2022 at 11:21 AM smitra wrote: The issues with branches etc. are likely just artifacts with making

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-10 Thread Bruce Kellett
On Wed, May 11, 2022 at 3:11 PM smitra wrote: > On 11-05-2022 06:06, Bruce Kellett wrote: > > On Wed, May 11, 2022 at 1:56 PM smitra wrote: > > > >> On 09-05-2022 00:34, Bruce Kellett wrote: > >> > >>> That still treats the SE as indubitally true. No theory in physics is > >>> 'indubitably

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-10 Thread smitra
On 11-05-2022 06:01, Bruce Kellett wrote: On Wed, May 11, 2022 at 1:51 PM smitra wrote: On 09-05-2022 00:42, Bruce Kellett wrote: Such models are certainly inconsistent with the SE. So if your concern is that the SE does not contain provision for a collapse, then you should doubt other

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-10 Thread smitra
On 11-05-2022 06:06, Bruce Kellett wrote: On Wed, May 11, 2022 at 1:56 PM smitra wrote: On 09-05-2022 00:34, Bruce Kellett wrote: That still treats the SE as indubitally true. No theory in physics is 'indubitably true'. The Everett program is to say that the SE is all that there is --

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-10 Thread Bruce Kellett
On Wed, May 11, 2022 at 1:56 PM smitra wrote: > On 09-05-2022 00:34, Bruce Kellett wrote: > > > That still treats the SE as indubitally true. No theory in physics is > > 'indubitably true'. > > > > The Everett program is to say that the SE is all that there is -- it > > explains everything. That

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-10 Thread Bruce Kellett
On Wed, May 11, 2022 at 1:51 PM smitra wrote: > On 09-05-2022 00:42, Bruce Kellett wrote: > > > > Such models are certainly inconsistent with the SE. So if your concern > > is that the SE does not contain provision for a collapse, then you > > should doubt other theories that violate the SE. You

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-10 Thread smitra
On 09-05-2022 00:34, Bruce Kellett wrote: On Mon, May 9, 2022 at 6:52 AM smitra wrote: On 08-05-2022 06:04, Bruce Kellett wrote: On Sun, May 8, 2022 at 11:21 AM smitra wrote: The issues with branches etc. are likely just artifacts with making hidden assumptions about branches. At the

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-10 Thread smitra
On 09-05-2022 00:42, Bruce Kellett wrote: On Mon, May 9, 2022 at 6:37 AM smitra wrote: On 08-05-2022 05:58, Bruce Kellett wrote: It is when you take the SE to imply that all possible outcomes exist on each trial. That gives all outcomes equal status. All outcomes can exist without these

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-10 Thread smitra
On 09-05-2022 01:00, Brent Meeker wrote: On 5/8/2022 1:50 PM, smitra wrote: On 08-05-2022 06:03, Brent Meeker wrote: On 5/7/2022 6:21 PM, smitra wrote: On 05-05-2022 00:04, Brent Meeker wrote: On 5/4/2022 12:27 PM, smitra wrote: In fact, that idea introduces a raft of problems of its own --

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-09 Thread John Clark
On Mon, May 9, 2022 at 3:18 PM Brent Meeker wrote: >> And all of that is fundamentally the same as "shut up and calculate ", >> they're just dressed up in slightly different philosophical bafflegab. > > > * > They're not "dressed up", they are perfectly explicit in their > interpretation and

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-09 Thread Brent Meeker
On 5/9/2022 3:36 AM, John Clark wrote: On Sun, May 8, 2022 at 7:00 PM Brent Meeker wrote: On 5/8/2022 1:50 PM, smitra wrote: >> That the CI is inconsistent with the Schrödinger equation is easy to >> see. If the Schrödinger is valid, then the state of a

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-09 Thread Brent Meeker
On 5/9/2022 3:15 AM, John Clark wrote: On Sun, May 8, 2022 at 6:34 PM Bruce Kellett wrote: /> The Everett program is to say that the SE is all that there is -- it explains everything. / No! The Everett program says the only assumption Quantum Mechanics needs is that the

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-09 Thread John Clark
On Sun, May 8, 2022 at 7:00 PM Brent Meeker wrote: On 5/8/2022 1:50 PM, smitra wrote: > > >> That the CI is inconsistent with the Schrödinger equation is easy to > > >> see. If the Schrödinger is valid, then the state of a system evolves > > >> in a unitary way. But after a real collapse the

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-09 Thread John Clark
On Sun, May 8, 2022 at 6:34 PM Bruce Kellett wrote: *> The Everett program is to say that the SE is all that there is -- it > explains everything. * No! The Everett program says the only assumption Quantum Mechanics needs is that the Schrodinger Equation means what it says, and nobody in their

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-08 Thread Bruce Kellett
On Mon, May 9, 2022 at 12:47 PM Brent Meeker wrote: > On 5/8/2022 5:39 PM, Bruce Kellett wrote: > > On Mon, May 9, 2022 at 10:32 AM Brent Meeker > wrote: > >> On 5/8/2022 5:25 PM, Bruce Kellett wrote: >> >> On Mon, May 9, 2022 at 10:17 AM Brent Meeker >> wrote: >> >>> >>> I don't think that's

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-08 Thread Brent Meeker
On 5/8/2022 5:39 PM, Bruce Kellett wrote: On Mon, May 9, 2022 at 10:32 AM Brent Meeker wrote: On 5/8/2022 5:25 PM, Bruce Kellett wrote: On Mon, May 9, 2022 at 10:17 AM Brent Meeker wrote: On 5/8/2022 3:42 PM, Bruce Kellett wrote: On Mon, May 9, 2022 at 6:37

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-08 Thread Bruce Kellett
On Mon, May 9, 2022 at 10:32 AM Brent Meeker wrote: > On 5/8/2022 5:25 PM, Bruce Kellett wrote: > > On Mon, May 9, 2022 at 10:17 AM Brent Meeker > wrote: > >> On 5/8/2022 3:42 PM, Bruce Kellett wrote: >> >> On Mon, May 9, 2022 at 6:37 AM smitra wrote: >> >>> On 08-05-2022 05:58, Bruce Kellett

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-08 Thread Brent Meeker
On 5/8/2022 5:25 PM, Bruce Kellett wrote: On Mon, May 9, 2022 at 10:17 AM Brent Meeker wrote: On 5/8/2022 3:42 PM, Bruce Kellett wrote: On Mon, May 9, 2022 at 6:37 AM smitra wrote: On 08-05-2022 05:58, Bruce Kellett wrote: > It is when you take the SE to imply

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-08 Thread Bruce Kellett
On Mon, May 9, 2022 at 10:17 AM Brent Meeker wrote: > On 5/8/2022 3:42 PM, Bruce Kellett wrote: > > On Mon, May 9, 2022 at 6:37 AM smitra wrote: > >> On 08-05-2022 05:58, Bruce Kellett wrote: >> >> > It is when you take the SE to imply that all possible outcomes exist >> > on each trial. That

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-08 Thread Brent Meeker
On 5/8/2022 3:42 PM, Bruce Kellett wrote: On Mon, May 9, 2022 at 6:37 AM smitra wrote: On 08-05-2022 05:58, Bruce Kellett wrote: > It is when you take the SE to imply that all possible outcomes exist > on each trial. That gives all outcomes equal status. All outcomes can

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-08 Thread Brent Meeker
On 5/8/2022 1:50 PM, smitra wrote: On 08-05-2022 06:03, Brent Meeker wrote: On 5/7/2022 6:21 PM, smitra wrote: On 05-05-2022 00:04, Brent Meeker wrote: On 5/4/2022 12:27 PM, smitra wrote: In fact, that idea introduces a raft of problems of its own -- what is the measure over this infinity

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-08 Thread Bruce Kellett
On Mon, May 9, 2022 at 6:37 AM smitra wrote: > On 08-05-2022 05:58, Bruce Kellett wrote: > > > It is when you take the SE to imply that all possible outcomes exist > > on each trial. That gives all outcomes equal status. > > All outcomes can exist without these being equally likely. One can make

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-08 Thread Bruce Kellett
On Mon, May 9, 2022 at 6:52 AM smitra wrote: > On 08-05-2022 06:04, Bruce Kellett wrote: > > On Sun, May 8, 2022 at 11:21 AM smitra wrote: > > > >> The issues with branches etc. are likely just artifacts with making > >> hidden assumptions about branches. At the end of the day there are > >>

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-08 Thread smitra
On 08-05-2022 06:04, Bruce Kellett wrote: On Sun, May 8, 2022 at 11:21 AM smitra wrote: The issues with branches etc. are likely just artifacts with making hidden assumptions about branches. At the end of the day there are only a finite number of states an observer can be in. If an observer

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-08 Thread smitra
On 08-05-2022 06:03, Brent Meeker wrote: On 5/7/2022 6:21 PM, smitra wrote: On 05-05-2022 00:04, Brent Meeker wrote: On 5/4/2022 12:27 PM, smitra wrote: In fact, that idea introduces a raft of problems of its own -- what is the measure over this infinity of branches? What does it mean to

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-08 Thread smitra
On 08-05-2022 05:58, Bruce Kellett wrote: On Sun, May 8, 2022 at 11:32 AM smitra wrote: On 05-05-2022 01:15, Bruce Kellett wrote: On Thu, May 5, 2022 at 5:27 AM smitra wrote: On 04-05-2022 01:49, Bruce Kellett wrote: I have not introduced any concept of probability. The 2^N branches

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-08 Thread smitra
On 08-05-2022 05:56, Bruce Kellett wrote: On Sun, May 8, 2022 at 11:40 AM smitra wrote: On 05-05-2022 01:57, Bruce Kellett wrote: On Thu, May 5, 2022 at 5:27 AM smitra wrote: Of course you can. The lottery example shows that even in classical physics you can imagine this happening. If

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-08 Thread John Clark
On Sat, May 7, 2022 at 7:18 PM Bruce Kellett wrote: *> Everett's theory does not attach a probability to branches -- it just > says that they all happen. And that is the biggest failure of Everett's > theory* > Now Bruce, we both know if probability didn't enter into Everett's idea then his PhD

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-07 Thread Bruce Kellett
On Sun, May 8, 2022 at 2:24 PM Brent Meeker wrote: > On 5/7/2022 8:56 PM, Bruce Kellett wrote: > > I think this boils down to the first person:third person confusion that > Bruno often refers to. > From the third person perspective, the outcome is certain. But from the > first person perspective

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-07 Thread Brent Meeker
On 5/7/2022 8:56 PM, Bruce Kellett wrote: On Sun, May 8, 2022 at 11:40 AM smitra wrote: On 05-05-2022 01:57, Bruce Kellett wrote: > On Thu, May 5, 2022 at 5:27 AM smitra wrote: >> >> Of course you can. The lottery example shows that even in classical >> physics you can

Re: The Nature of Contingency: Quantum Physics as Modal Realism

2022-05-07 Thread Bruce Kellett
On Sun, May 8, 2022 at 11:21 AM smitra wrote: > > The issues with branches etc. are likely just artifacts with making > hidden assumptions about branches. At the end of the day there are only > a finite number of states an observer can be in. If an observer is > modeled as an algorithm, take

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