tag:blogger.com,1999:blog-22973357.post4837942145181228475..comments2023-09-27T07:44:19.769-04:00Comments on Sabine Hossenfelder: Backreaction: Particle Physics now Belly UpSabine Hossenfelderhttp://www.blogger.com/profile/06151209308084588985noreply@blogger.comBlogger60125tag:blogger.com,1999:blog-22973357.post-631671552621715632018-07-13T07:25:46.852-04:002018-07-13T07:25:46.852-04:00As much as your criticism is punctual relevant, it...As much as your criticism is punctual relevant, it lacks the fundamental (meaningful) consequence. SUSY is a "good" example. The reference to the lack of corresponding "particle accelerator results" (super partner particles) in the course of (indirect) detection, however, implies the reality of a supersymmetric order of nature. The assumption that a theoretical construct, bornDirk Freylinghttps://www.blogger.com/profile/15330626465475439718noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-4212448730348641422018-07-11T11:45:04.545-04:002018-07-11T11:45:04.545-04:00Hi Sabine,
You mentioned in your interview by Joh...Hi Sabine, <br />You mentioned in your interview by John Horgan the Asymptotically Safe Gravity as what looks to me more of a bottom's up approach to the problem of quantum gravity that does not require supersymmetry. I have read up elements of the theory (Friederich 2017) and in the article it is mentioned that it attributes fractal like properties to space time. There has been some recent GRFhttps://www.blogger.com/profile/16560960640503681005noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-73616017945084794172018-07-09T11:16:49.051-04:002018-07-09T11:16:49.051-04:00Mathematicians in physics are like accountants in ...Mathematicians in physics are like accountants in business. They are useful and necessary but don't let them take the big decisions.Lindsay Forbeshttps://www.blogger.com/profile/02027656071652397830noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-68253999457545860202018-07-05T10:04:31.724-04:002018-07-05T10:04:31.724-04:00How about a middle-1/2-up-1/2 down approach?How about a middle-1/2-up-1/2 down approach?StevenGhttps://www.blogger.com/profile/00313582277095343525noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-83330689137128277872018-07-04T00:58:48.821-04:002018-07-04T00:58:48.821-04:00I am 20% through Bee’s book. Will it influence res...I am 20% through Bee’s book. Will it influence research funding to be more practical. I doubt it can be easily influenced by books or blogs. <br /><br />Here’s a plan: Throw out all the goofy theories and go back about 100 years and move forward deliberately, never accepting nutty stuff like uncertainty and other paradoxes. There is a natural physical solution that is a solution to all the John Mark Morrishttps://www.blogger.com/profile/00603837401855771543noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-2867955070853719482018-07-03T14:02:39.561-04:002018-07-03T14:02:39.561-04:00One of the blog sites I like to read is 4gravitons...One of the blog sites I like to read is 4gravitons (https://4gravitons.wordpress.com/), the latest posting was a summary of Strings 2018 at OIST which included this:<br /><br />"Talks here focused on a few big questions: 'Can we classify all quantum field theories?' 'What are the general principles behind quantum gravity?' 'Can we make some of the murky aspects of string sean s.https://www.blogger.com/profile/04190153587965701495noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-88582374497643591602018-06-29T16:48:48.026-04:002018-06-29T16:48:48.026-04:00Definition: Nature is natural.
Fact: some great ap...Definition: Nature is natural.<br />Fact: some great apes are uneasy about some of the numbers in nature.<br />Small "unnatural" number: one species out of 8.7+-1.3 million is doing physics.<br />And worrying about small numbers...<br />J.R. CudellAnonymoushttps://www.blogger.com/profile/00694152393128215104noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-42747351653921667192018-06-28T17:56:38.851-04:002018-06-28T17:56:38.851-04:00“If you gotta pretty good idea of what you’re look...“If you gotta pretty good idea of what you’re looking for,<br />Then you gotta pretty good idea of what you’ll find.<br />You don’t have to go so very far these days,<br />To find yourself a made up mind.”<br />Peter Mulvey, Letters From A Flying Machine, “Kids in The Square”<br /><br />Continuing a discussion obliquely relevant to the hiatus in theory-development in particle physics…<br /><br />Don Fosterhttps://www.blogger.com/profile/04814669413022486958noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-77116088603862688442018-06-28T09:55:16.769-04:002018-06-28T09:55:16.769-04:00@ Andrew,
The anti-de Sitter spacetime is where q...@ Andrew,<br /><br />The anti-de Sitter spacetime is where quantum gravitation really exists. It is then "what if? time." What if the AdS with its causal regions defined by null surfaces, in two dimensions that correspond to arcs, has a junction conditions across these null surfaces. These null surfaces define a holographic screen with a positive energy junction, and the observable Lawrence Crowellhttps://www.blogger.com/profile/12090839464038445335noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-11090849123775872322018-06-27T23:20:37.000-04:002018-06-27T23:20:37.000-04:00Is string theory going to end up falsifying itself...Is string theory going to end up falsifying itself?<br /><br />https://www.physicsforums.com/threads/no-metastable-type-iib-de-sitter-vacua.950271/andrewhttps://www.blogger.com/profile/08172964121659914379noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-61578533139862756822018-06-27T22:31:13.329-04:002018-06-27T22:31:13.329-04:00Hello Dr. H. Here is my article inspired by your b...Hello Dr. H. Here is my article inspired by your book. I emphasize that like much of modern physics it is a view that amounts to one possibility among many, but in your book you do in a back handed way acknowledge that this possibility remains open.<br /><br />There are two links. The first to a copy of my Amazon review preceded by a short extra commentary on what in my review I called your "Matthewhttps://www.blogger.com/profile/03016608637645316849noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-31689340250073385812018-06-27T22:22:32.246-04:002018-06-27T22:22:32.246-04:00Hello,
I bought your book! I don't unders...Hello, <br /><br />I bought your book! I don't understand anything. But i will keep re-reading it until you do. Now that you are almost free to travel, will you be visiting NYC to promote your book? Please let your readers know! Jonathan Silvermanhttps://www.blogger.com/profile/16722353001635974998noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-44926213087441913492018-06-26T23:37:18.765-04:002018-06-26T23:37:18.765-04:00I'm not a physicist, and this comment is not d...I'm not a physicist, and this comment is not directed at you personally, but it sounds like scientist/physicist these days need to learn how to play. They are so dogmatic and have so much tied to an idea that they can't even acknowledge ideas that are contrary to the mainstream without melting down.They are like kids trying to get the NextGen iPhone when they don't even use what they RAVaughthttps://www.blogger.com/profile/02938378806162960475noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-82481382639510704072018-06-26T23:33:03.095-04:002018-06-26T23:33:03.095-04:00Bee,
thanks, i was of the understanding that ferm...Bee,<br /><br />thanks, i was of the understanding that fermions and wz bosons get their mass from the higgs field, though i don't entirely understand why a top quark interacts more strongly with the higgs than say an electron or up and down quark<br /><br />and the higgs mass is due to its interaction with itself. <br /><br />a more fundamental theory then would allow the theorist to neohttps://www.blogger.com/profile/17318664916557810347noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-34245756662640798942018-06-26T13:11:43.336-04:002018-06-26T13:11:43.336-04:00Personally I suspect where physics errs is in the ...Personally I suspect where physics errs is in the assumption the math of GR and QM replicates how nature gets to those predictions. I’m not questioning their usefulness or accuracy at all, I’m merely speculating there is a possibility that things like the wave function and the curvature of spacetime don’t exists in nature in spite of their predictive power and accuracy, ergo they also create someLouis Tagliaferrohttps://www.blogger.com/profile/16698865662162457632noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-64052752377547304632018-06-26T11:07:59.975-04:002018-06-26T11:07:59.975-04:00Unknown Jay, the work theorists do is based on pas...Unknown Jay, the work theorists do is based on past experiments and confirmed or refuted by future experiments. Whether it is right or not is something that remains to be seen, but however they do it and whatever philosophical approach they take it is certainly science, not religion. I have not said that there will be no useful future experimental input, just that we are not finding it at present.PeteHHhttps://www.blogger.com/profile/08545699636937390967noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-59331778289656987012018-06-25T21:47:51.072-04:002018-06-25T21:47:51.072-04:00These comments are interesting but a little over m...These comments are interesting but a little over my head.<br /><br />sean s.sean s.https://www.blogger.com/profile/04190153587965701495noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-56311453179620839082018-06-25T20:18:33.322-04:002018-06-25T20:18:33.322-04:00@PhilG- If we're stuck without further experim...@PhilG- If we're stuck without further experimental input, then is what we're doing science? Human beings are really good at constructing elaborate, self-consistent systems that have no relationship to observable reality (see: all of philosophy and theology (of every religion except yours, of course)). If theory can't be disciplined by experiment, it's not likely to be reliable.Unknownhttps://www.blogger.com/profile/15730892655991613183noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-28241245550480812452018-06-25T19:40:07.742-04:002018-06-25T19:40:07.742-04:00Ervin,
My standard email is goldenfieldquaternion...Ervin,<br /><br />My standard email is goldenfieldquaternions@gmail.com . I feel funny using another blog to establish another contact. Anyway, I there there are elements of chaos theory with bifurcations that are formally the same as Ginsburg-Landau based critical physics. I also worked up last decade this theory or model where perturbative QFT has a phase transition into physics more in line Lawrence Crowellhttps://www.blogger.com/profile/12090839464038445335noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-90688862109990831802018-06-25T19:16:26.826-04:002018-06-25T19:16:26.826-04:00So sorry for this situation -- but it was inevitab...So sorry for this situation -- but it was inevitable. You see, you physics folks are just pure mathematicians who unfortunately insist that your mathematics bear some relationship with measurable outcomes, what some call reality. <br /><br />As a pure mathematician, I am not constrained by such silliness. If the math is beautiful, that is reason enough to pursue it. I say, go for beauty -- super Anonymoushttps://www.blogger.com/profile/01263527935170116726noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-76472588767126136552018-06-25T17:37:21.432-04:002018-06-25T17:37:21.432-04:00Well, it must be my personal conundrum and one who...Well, it must be my personal conundrum and one whose answer is so well known that it needs no discussion here, but why is cyclical and wave-like dynamic such an integral phenomenon in the physics of the universe? Does it arise clearly from the Standard Model or is it merely taken as a given property to be mathematically described? Does it perhaps have its own alchemy of necessary ingredients? <brDon Fosterhttps://www.blogger.com/profile/04814669413022486958noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-9288323614404928852018-06-25T15:15:22.696-04:002018-06-25T15:15:22.696-04:00I have been a reader for a while and I keep coming...I have been a reader for a while and I keep coming to the same question. Are there experimental physicist working on particle physics in the scientific way (as opposed to the non-scientific that you so often describe) or the network of BSers occupy the whole area? In case there is people working in the scientific way (which I’m sure there is), how have they fared in the same time-frame (lets say Don Quixotehttps://www.blogger.com/profile/00614784165375756309noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-56596054535057878372018-06-25T15:04:32.584-04:002018-06-25T15:04:32.584-04:00Fundamental physics is stuck, because we've en...Fundamental physics is stuck, because we've encountered a "desert" and the "beautiful theories" aren't panning out experimentally. But particle physics is not.<br /><br />There are plenty of worthy problems out there that should, in principle, be solvable without any beyond the Standard Model or beyond General Relativity physics, and which could justify further andrewhttps://www.blogger.com/profile/08172964121659914379noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-33817714122901669492018-06-25T13:20:40.295-04:002018-06-25T13:20:40.295-04:00I think particle physics is wonderfull: it seems t...I think particle physics is wonderfull: it seems that even spin-0 particles like the Higgs bosons do twist and turn.<br /><br />For Tate:<br /><br />"There was a young man called Tate,<br />who dined with his girlfriend at eight-eight,<br />but as fate does not state I cannot relate<br />what Tate and his Tête-a-Tête ate at eight-eight".martenhttps://www.blogger.com/profile/02423871089614417690noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-90652979904956525392018-06-25T12:23:40.119-04:002018-06-25T12:23:40.119-04:00I know little, but whether top-down or bottom-up, ...I know little, but whether top-down or bottom-up, the evolution of particle physics may have branched off towards a dead end. Perhaps the devices which experiment with the electro-magnetic containment of plasma fields will yield enlightenment and a new branch which leads further.cjones1https://www.blogger.com/profile/08995568008023111129noreply@blogger.com