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

2022-04-28 Thread Alan Grayson
On Thursday, April 28, 2022 at 1:33:06 PM UTC-6 johnk...@gmail.com wrote: > On Thu, Apr 28, 2022 at 3:15 PM Alan Grayson wrote: > > > *Y**ou can only use Born's rule in any world where an ensemble of >> measurements occurs. But you've admitted that no such ensemble can exist in >> any

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

2022-04-28 Thread George Kahrimanis
> On 4/28/2022 10:45 AM, John Clark wrote: > > Exactly what axiom would that be? It can't be the Born rule because that > is not an axiom, that is an experimentaly derived fact. > > If I take some experimental result as granted, then it is an axiom, in my system. If you think we need to be

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

2022-04-28 Thread George Kahrimanis
On Thursday, April 28, 2022 at 11:49:03 PM UTC+3 meeke...@gmail.com (Bent) wrote: > In unitary evolution per the Schroedinger equation there are no "paticular > universes", there's only a ray in Hilbert space. Multiple universes is a > FAPP viewpoint. But so is wave-function collapse. > I

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

2022-04-28 Thread Brent Meeker
On 4/28/2022 10:45 AM, John Clark wrote: On Thu, Apr 28, 2022 at 1:25 PM Alan Grayson wrote: /> The unresolved problem is that if you're using the frequentist interpretation of probability, you must count and compare the number of outcomes for each measurement possibility, but

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

2022-04-28 Thread Brent Meeker
On 4/28/2022 4:48 AM, John Clark wrote: On Tue, Apr 26, 2022 at 10:57 PM Bruce Kellett wrote: /> An important component of Everett's idea was that quantum evolution was unitary./ Any idea that does not conform with quantum evolution being unitary is an idea that does not conform

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

2022-04-28 Thread John Clark
On Thu, Apr 28, 2022 at 3:15 PM Alan Grayson wrote: > *Y**ou can only use Born's rule in any world where an ensemble of > measurements occurs. But you've admitted that no such ensemble can exist in > any world.* No, I did NOT admit that no ensemble of measurements can exist, what I said was

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

2022-04-28 Thread Alan Grayson
On Thursday, April 28, 2022 at 12:21:59 PM UTC-6 johnk...@gmail.com wrote: > On Thu, Apr 28, 2022 at 2:04 PM Alan Grayson wrote: > > >> Exactly what axiom would that be? It can't be the Born rule because >>> that is not an axiom, that is an experimentaly derived fact. >>> >> >From what data?

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

2022-04-28 Thread John Clark
On Thu, Apr 28, 2022 at 2:04 PM Alan Grayson wrote: >> Exactly what axiom would that be? It can't be the Born rule because that >> is not an axiom, that is an experimentaly derived fact. >> > > *> The axiom that additional trials in this world,* > No world can have more than one trial because

WAMP's Four Big Lies: CO2 , Threat, RNA World as Origin of Life, Robots Slightly Sentient, CpenPagan Misinerpretation

2022-04-28 Thread Philip Benjamin
https://www.msn.com/en-us/news/technology/scientists-make-miracle-material-breakthrough-to-revolutionise-solar-power/ [Philip Benjamin] According to City University of Hong Kong (CityU) and Imperial College London “Revolutionizing solar power” through Perovskite (calcium titanium oxide

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

2022-04-28 Thread Alan Grayson
On Thursday, April 28, 2022 at 11:46:22 AM UTC-6 johnk...@gmail.com wrote: > On Thu, Apr 28, 2022 at 1:25 PM Alan Grayson wrote: > > *> The unresolved problem is that if you're using the frequentist >> interpretation of probability, you must count and compare the number of >> outcomes for

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

2022-04-28 Thread John Clark
On Thu, Apr 28, 2022 at 1:25 PM Alan Grayson wrote: *> The unresolved problem is that if you're using the frequentist > interpretation of probability, you must count and compare the number of > outcomes for each measurement possibility, but you can't do this without > knowing that the outcomes

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

2022-04-28 Thread Alan Grayson
On Thursday, April 28, 2022 at 5:48:44 AM UTC-6 johnk...@gmail.com wrote: > On Tue, Apr 26, 2022 at 10:57 PM Bruce Kellett wrote: > > *> An important component of Everett's idea was that quantum evolution was >> unitary.* > > > Any idea that does not conform with quantum evolution being

The LHC is back

2022-04-28 Thread John Clark
After a three year shutdown to make an upgrade the LHC has started up again, it should be able to start doing science again in late June, by coincidence just about the same time that the Webb telescope will be able to start doing science. Thanks to the upgrade the LHC's detectors will be much more

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

2022-04-28 Thread John Clark
On Tue, Apr 26, 2022 at 10:57 PM Bruce Kellett wrote: *> An important component of Everett's idea was that quantum evolution was > unitary.* Any idea that does not conform with quantum evolution being unitary is an idea that does not conform with experimental evidence and thus has been proven