tag:blogger.com,1999:blog-22973357.post4043732913292427604..comments2023-09-27T07:44:19.769-04:00Comments on Sabine Hossenfelder: Backreaction: What did Einstein mean by “spooky action at a distance”?Sabine Hossenfelderhttp://www.blogger.com/profile/06151209308084588985noreply@blogger.comBlogger177125tag:blogger.com,1999:blog-22973357.post-72935846768574179282021-07-07T19:03:24.532-04:002021-07-07T19:03:24.532-04:00To assume that the universe has been created by so...To assume that the universe has been created by some outside intervention is metaphysics. The challenge to physicists is to find out how it manages to create itself.<br /><br />I think that the confusion about ‘spooky action at a distance’ originates in our present notion of time, the assumption that (ignoring velocity and gravitational time dilation) it is the same time, that time passes at the antonhttps://www.blogger.com/profile/03261992443049108717noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-58089859162815096342021-07-06T08:06:24.652-04:002021-07-06T08:06:24.652-04:00There's nothing spooky if we are living in a s...There's nothing spooky if we are living in a simulation (sic). Particles reference their states by pointers. The state is changing at the pointer location which is then access by both particles.Catalinhttps://www.blogger.com/profile/06192244112905762189noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-2013475727303823002021-07-02T17:43:38.773-04:002021-07-02T17:43:38.773-04:00Anton,
I don't know but what I can say is tha...Anton,<br /><br />I don't know but what I can say is that it is a big "IF".<br /><br />Also, when you speak of "a universe which creates itself out of nothing, without any outside intervention, etc", are we still dealing with physics... or metaphysics?<br />Stillhttps://www.blogger.com/profile/14111349291308038616noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-92198984885166087552021-07-01T23:14:54.087-04:002021-07-01T23:14:54.087-04:00If we live in a universe which creates itself out ...If we live in a universe which creates itself out of nothing, without any outside intervention, particles, particle properties must be as much the cause, the source as the effect, the product of their interactions (with all other particles within their interaction horizon), then can we avoid the conclusion that their communication then must be instantaneous? antonhttps://www.blogger.com/profile/00191373526872878214noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-3934373717016671452021-06-30T14:46:57.615-04:002021-06-30T14:46:57.615-04:00Dr. Hossenfelder,
Very interesting subject and ve...Dr. Hossenfelder,<br /><br />Very interesting subject and very interesting conversation.<br /><br />You wrote that:<br /><br />"Entanglement is a correlation like this, it’s just that you can only create it with quantum particles. Suppose you have a particle with total spin zero that decays in two particles that can have spin either plus or minus one. One particle goes left, the other one Stillhttps://www.blogger.com/profile/14111349291308038616noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-46648819763097855582021-06-23T09:22:09.685-04:002021-06-23T09:22:09.685-04:00Does this basically come down to the quantum proba...Does this basically come down to the quantum probabilities communicating with each other so they "know" when to cancel out. So catching one electron couldn't produce another from the probabilities of being found elsewhere? ItConstantinhttps://www.blogger.com/profile/15000934481091121265noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-54570809539231662032021-06-11T11:48:21.463-04:002021-06-11T11:48:21.463-04:00Ms. Hossenfelder, thank-you for your fantastic vid...Ms. Hossenfelder, thank-you for your fantastic videos. Your logic is piercing and your arguments are compelling.<br /><br />Regarding spooky action at a distance, I feel like perhaps there is an unwarranted presumption about "distance". We proclaim that space and time are intricately linked but then all references to "local" rely on the colloquial definition of word (i.e. Rhoderick Beeryhttps://www.blogger.com/profile/05096535455261093177noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-31033744151985847142021-06-03T15:42:55.924-04:002021-06-03T15:42:55.924-04:00T get a better layman’s understanding of this, I r...T get a better layman’s understanding of this, I recommend: https://cp3.irmp.ucl.ac.be/~maltoni/PHY1222/mermin_moon.pdfpetehttps://www.blogger.com/profile/04502153252871697926noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-18155013701852832662021-05-24T01:45:55.095-04:002021-05-24T01:45:55.095-04:00JimV,
"My guess is that if EM configurations...JimV,<br /><br />"My guess is that if EM configurations of experimental settings had a strong influence on measurement results, than placing two sets of such equipment next to the active one would vary the experimental results as the settings of the non-functional equipment were varied, but in actual experiments of that sort no effects would be detected. (I don't know if it has been Andreihttps://www.blogger.com/profile/05519448415253342448noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-28923076142820092512021-05-21T16:27:07.515-04:002021-05-21T16:27:07.515-04:00@JimV
IMO more dogged determination than 'cle...@JimV<br /><br />IMO more dogged determination than 'clever work', but thanks for the first ever appreciative comment on my physics work!<br /><br />JimV wrote: "I have not tried to apply it to all quantum experiment situations, such as EPR, so I don't know if it qualifies as a complete interpretation."<br /><br />I have used computer simulations of my model in a ben6993https://www.blogger.com/profile/11246990849377879772noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-72790055367883672802021-05-21T12:26:19.305-04:002021-05-21T12:26:19.305-04:00In response to: "I already have a Classical m...In response to: "I already have a Classical model of an electron that gives the Malus Law results."--Austin Fearnley<br /><br />That sounds like a result of a lot of clever work and research. At first glance, it seems more like a new interpretation of QM (the Fearnley Interpretation) than a classical model, because it incorporates quantum randomness and is not explicitly deterministic, JimVhttps://www.blogger.com/profile/10198704789965278981noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-61033853606325948272021-05-21T11:14:46.737-04:002021-05-21T11:14:46.737-04:00Jimv,
I once had a conversation with my fundamenta...Jimv,<br />I once had a conversation with my fundamentalist Christian brother in law about why there is something rather than nothing. He thought that that is the case was proof of God. I said to him there might be a lot of nothing somewhere, but there has never been not no nothing nowhere around here. We still talk, but not on that subject.Steve Bullfoxhttps://www.blogger.com/profile/13990244011256349875noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-53701209257397210002021-05-21T05:03:58.255-04:002021-05-21T05:03:58.255-04:00While reading several comments above, a naughty pr...While reading several comments above, a naughty problem crossed my mind: Suppose a mafia big shot on earth holds one of two entangled electrons while his companion on March holds the other one. The two partners in crime made the following deal: the companion will measure the spin (up or down) at 10:02 pm. If the spin is up he will chop off the head of some hostage, if down he will release the Gerben Mulderhttps://www.blogger.com/profile/05751053346610119135noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-5896131493501658582021-05-20T17:26:31.926-04:002021-05-20T17:26:31.926-04:00@Peter
I agree that:
1. Superdeterminism is unlik...@Peter<br /><br />I agree that:<br />1. Superdeterminism is unlikely.<br />2. Measurement outcomes are determined by probabilities. <br />3. There is 'no spooky action at a distance'. <br /><br />1. I prefer retrocausality (of antimatter) to superdeterminism. It is easy to show that retrocausality can produce the Bell QM correlation. (My June 2020 online paper.)<br /><br />2. This is a ben6993https://www.blogger.com/profile/11246990849377879772noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-56867341227605605572021-05-20T17:26:06.557-04:002021-05-20T17:26:06.557-04:00Good points by Steve Bullfox, relative to the spac...Good points by Steve Bullfox, relative to the space we are in, which contains the Cosmic Microwave Background radiation. However, not every physicist I have read is sure that space was not infinite and empty except for the Big Bang at the Big Bang. In which case there is still space that no material or radiation has reached, and although there is no thermometer there to read it, it has a JimVhttps://www.blogger.com/profile/10198704789965278981noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-48554152546085068632021-05-20T17:10:18.743-04:002021-05-20T17:10:18.743-04:00Mr. Andrei, we have discussed your EM-based super ...Mr. Andrei, we have discussed your EM-based super determinism before. My guess is that if EM configurations of experimental settings had a strong influence on measurement results, than placing two sets of such equipment next to the active one would vary the experimental results as the settings of the non-functional equipment were varied, but in actual experiments of that sort no effects would be JimVhttps://www.blogger.com/profile/10198704789965278981noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-5316787964672904962021-05-20T12:23:31.687-04:002021-05-20T12:23:31.687-04:00C Thompson
I suppose I helped steer your question ...C Thompson<br />I suppose I helped steer your question in the wrong direction, but it was mostly a statement.<br />You mention:<br />"Dr Hossenfelder asks which of 3 assumptions is wrong:<br />1. No Superdeterminism.<br />2. Measurements have definite outcomes.<br />3. No spooky action at a distance."<br />You state:<br />"I think the wrong assumption is 'Spooky action at a Peter Becherhttps://www.blogger.com/profile/04022891868017776895noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-30634437848229237302021-05-20T11:50:14.105-04:002021-05-20T11:50:14.105-04:00Sabine
It is unfortunate that they are seen as non...Sabine<br />It is unfortunate that they are seen as nonsense questions.<br />Little hope for the foundations in that.Peter Becherhttps://www.blogger.com/profile/04022891868017776895noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-10384734846072865862021-05-20T10:14:09.678-04:002021-05-20T10:14:09.678-04:00Hi Steve, IMO: We're used to prosaic everyday ...Hi Steve, IMO: We're used to prosaic everyday stuff like radiant heaters so we don't think about it. Space is mysterious because it's beyond our (non-scientists') ken, first-hand.<br />I didn't really think about how photons travelled at all until Paps57's comment. I just thought of heat transfer in terms of vibrating atoms and energy transfer.<br />To your earlier commentC Thompsonhttps://www.blogger.com/profile/01723392308309671498noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-3118980910373718532021-05-20T08:59:35.127-04:002021-05-20T08:59:35.127-04:00JimV,
"QM gives precise mathematical recipes...JimV,<br /><br />"QM gives precise mathematical recipes for calculating outcomes of events at the quantum level without assuming SD, and nature appears to agree rather perfectly with those recipes"<br /><br />Yes, but the choice is not between QM and superdeterminism. Superdeterminism does not imply a denial of QM, only of QM's completness.<br /><br />If QM is assumed to be completeAndreihttps://www.blogger.com/profile/05519448415253342448noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-79342205977080517662021-05-20T08:21:27.228-04:002021-05-20T08:21:27.228-04:00I'm not really qualified to have an opinion (a...I'm not really qualified to have an opinion (although that rarely stops me from giving one) on which of the three axioms is wrong, and unlikely to give one that hasn't already been discussed in the previous blog post where those axioms were presented. However, from what I can tell, most physicists would stake their honor on the choice of super determinism being wrong. (I encountered this JimVhttps://www.blogger.com/profile/10198704789965278981noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-33263156176393786882021-05-20T01:24:42.955-04:002021-05-20T01:24:42.955-04:00Would anyone like to give an answer to my comment ...Would anyone like to give an answer to my comment at the top of this thread?C Thompsonhttps://www.blogger.com/profile/01723392308309671498noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-87756584438151776842021-05-19T23:53:32.101-04:002021-05-19T23:53:32.101-04:00Peter,
Maybe read the book again because in it I ...Peter,<br /><br />Maybe read the book again because in it I explain how to find better explanations. It's not by asking nonsense questions and demanding intuitive answers. That's a stereotypic crank approach.<br /><br />And I am not a platonist, and not a realist either. Sabine Hossenfelderhttps://www.blogger.com/profile/06151209308084588985noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-79435223318574913682021-05-19T22:19:25.381-04:002021-05-19T22:19:25.381-04:00Sabine
I did get your point but you seem to miss o...Sabine<br />I did get your point but you seem to miss our point. We ask 'how' to try to find a deeper explanation of how things do actually work in nature.<br />You say "How does gravity work? Einsteins field equations. That's the best answer we have". GR is a good mathematical description of how gravity works and that is fine. I don't know if you think or have said &Peter Becherhttps://www.blogger.com/profile/04022891868017776895noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-90082012364060959272021-05-19T18:21:15.503-04:002021-05-19T18:21:15.503-04:00Photons in Spaccceee...
Its an unusually cool day...Photons in Spaccceee...<br /><br />Its an unusually cool day in Southern Oregon. As I write this. I have an electric heater turned on about a meter from my feet. Photons are leaving the heater and warming my feet quite nicely. How do they do this? How do they get from the heater to my feet and why would that short travel by anything different from what they do in empty space?<br /><br />You Steve Bullfoxhttps://www.blogger.com/profile/13990244011256349875noreply@blogger.com