tag:blogger.com,1999:blog-22973357.post6246253398759887627..comments2023-09-27T07:44:19.769-04:00Comments on Sabine Hossenfelder: Backreaction: Hawking’s “Final Theory” is not groundbreakingSabine Hossenfelderhttp://www.blogger.com/profile/06151209308084588985noreply@blogger.comBlogger26125tag:blogger.com,1999:blog-22973357.post-41685474589765338602018-05-05T02:59:58.511-04:002018-05-05T02:59:58.511-04:00Or this might be more accurate..
"There is ev...Or this might be more accurate..<br />"There is even less evidence of a multiverse from scientific evidence than seen in your sometimes whimsical writing style"Jomalivihttps://www.blogger.com/profile/13835128700605513137noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-91587290560499738492018-05-04T18:53:38.879-04:002018-05-04T18:53:38.879-04:00Your sometimes whimsical writing style is greater ...Your sometimes whimsical writing style is greater proof of a multiverse then any scientific evidence. Thanks for your perspective.Pete Smoyerhttps://www.blogger.com/profile/01164162642905825474noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-11751806155354786462018-05-03T04:46:56.554-04:002018-05-03T04:46:56.554-04:00Very helpful to have your alternative perspective....Very helpful to have your alternative perspective. ThanksJomalivihttps://www.blogger.com/profile/13835128700605513137noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-87235872051655410922018-04-02T05:11:17.252-04:002018-04-02T05:11:17.252-04:00It's really great to see you present such an u...It's really great to see you present such an unbiased opinion on someone who is a brilliant scientist in his own right but also deserves to be looked at and evaluated in the same way every other scientist is.Anonymoushttps://www.blogger.com/profile/04985607772417051560noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-26212549083925152362018-03-25T14:47:21.508-04:002018-03-25T14:47:21.508-04:00Good stuff Sabine. I rather think there are more i...Good stuff Sabine. I rather think there are more issues with Hawking's physics than many people appreciate. Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-22973357.post-12225245204789811342018-03-24T01:39:58.012-04:002018-03-24T01:39:58.012-04:00Thank you for not afraid to slay some sacred cows....Thank you for not afraid to slay some sacred cows. No matter how brilliant of a scientist Hawking might have been or what hardships he had to endure, it should have no bearing on our pursuit of truth and on our evaluation of his ideas on their own merits.Qhttps://www.blogger.com/profile/10542938146428749817noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-83190093541734230952018-03-22T03:42:57.024-04:002018-03-22T03:42:57.024-04:00Only recently coming into this space, relieved to ...Only recently coming into this space, relieved to find the odd oasis of sane conversation in what otherwise looks to me like flannel and drivel. Construed, as far as an outsider can tell, to complexify and obfuscate to the point where it either preserves the field for complex mathematics, or impresses science funding agencies. <br /><br />Thank you Sabine Hossenfelder.<br />Mark Martens, Mark Martenshttps://www.blogger.com/profile/16071450518363119462noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-63073574711660438672018-03-22T01:42:05.281-04:002018-03-22T01:42:05.281-04:00Lee,
The CMB is electromagnetic radiation; its po...Lee,<br /><br />The CMB is electromagnetic radiation; its polarization is caused by gravitational waves (in the early universe). I am guessing the neutrino background would also be polarized, yes, but we haven't measured that to begin with, so I don't think it'll be of much help. Best,<br /><br />B.Sabine Hossenfelderhttps://www.blogger.com/profile/06151209308084588985noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-87181017932426483432018-03-21T20:40:05.460-04:002018-03-21T20:40:05.460-04:00Clark Kerr would be proud--he championed the move ...Clark Kerr would be proud--he championed the move from "the university" to "the mulitversity."SRPhttps://www.blogger.com/profile/14905952909862780492noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-62958614953318206332018-03-21T20:39:37.148-04:002018-03-21T20:39:37.148-04:00Hawking has such a media-magnified reputation with...Hawking has such a media-magnified reputation with the general public that it short-circuits any critical discussion of his life and work. Physics needs a Hall-of-Fame (more than a list of Nobel laureates) which might help put Hawking's career in perspective with the many other great physicists whom the public don't know and maybe never will: Thompson, Dirac, Born, Witten, Hess, Ray RockyOkiehttps://www.blogger.com/profile/00847894083823316600noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-58826554384631348912018-03-21T14:54:36.917-04:002018-03-21T14:54:36.917-04:00Is the CMB polarisation of Electormagnetic moments...Is the CMB polarisation of Electormagnetic moments rather than gravitational wave ones or both?<br />Would there be anything predictions to be seen in the neutrino background equivalent of the CnB?Anonymoushttps://www.blogger.com/profile/07790042974347244193noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-38638712594036826332018-03-21T04:20:45.375-04:002018-03-21T04:20:45.375-04:00The not very logical cosmological term multiverse ...The not very logical cosmological term multiverse (no unquestionable definition and no unquestionable existence) should be replaced by another word in order to avoid misunderstanding: examples of real multiverses are my favourite Iliad and Odyssey.martenhttps://www.blogger.com/profile/02423871089614417690noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-11283788941016048872018-03-21T01:40:10.598-04:002018-03-21T01:40:10.598-04:00Tam,
The paper is not "pretty idiotic,"...Tam,<br /><br />The paper is not "pretty idiotic," it's just not what it's been sold for. It's a study about the shape of universes in a multiverse of a particular kind. It doesn't make any prediction from which you could infer the presence of other universes. Sabine Hossenfelderhttps://www.blogger.com/profile/06151209308084588985noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-55141014643106557022018-03-21T01:11:23.513-04:002018-03-21T01:11:23.513-04:00Sabine is not a multiverse fan. She is also not...Sabine is not a multiverse fan. She is also not a fan of science fiction posing as theoretical physics. Anonymoushttps://www.blogger.com/profile/02174885338753905557noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-78653856664634178882018-03-21T00:36:32.758-04:002018-03-21T00:36:32.758-04:00This is a good article. One that all aspiring sci...This is a good article. One that all aspiring science media sudents should read.<br /><br />Back to Hawking's career...'A Tale of Two Scientists'. One of the top half dozen minds of the 20th century. However, not of the 21st century.Tim aaronhttps://www.blogger.com/profile/00466709989146738234noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-15305110571351226312018-03-20T17:13:35.102-04:002018-03-20T17:13:35.102-04:00Thanks for this summary Bee. But if it was that cu...Thanks for this summary Bee. But if it was that cut and dried in terms of the paper being not only "unremarkable" but apparently pretty idiotic, surely the authors would have recognized this and reviewers will also? Tam Hunthttps://www.blogger.com/profile/05919461715412820636noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-35381245310379115552018-03-20T13:08:38.957-04:002018-03-20T13:08:38.957-04:00Re: "if I find a coin on the street then Bill...Re: "if I find a coin on the street then Bill Gates must have walked by" - this reminded me of a story from the unauthorized biography "Gates":<br /><br />Bill Gates was holding up a long line at a Baskin-Robbins (ice cream shop) because he kept searching through his pockets, looking a 25-cent coupon. Finally, the man behind him slapped a quarter (25-cent coin) on the counter,JimVhttps://www.blogger.com/profile/10198704789965278981noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-87522358974364389512018-03-20T12:44:24.675-04:002018-03-20T12:44:24.675-04:00"none of it is supported by evidence" C..."<i>none of it is supported by evidence</i>" Chemistry says enantiomers are utterly indistinguishable absent a chiral background (opposite shoes embedded within a preponderant left foot).<br /> <br />if QM is considered, 50 years of physical theory do not predict the observed universe outside curve-fitted intervals. One hour in commercial equipment (brightspec.com) using a Uncle Alhttps://www.blogger.com/profile/05056804084187606211noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-50133329179677865062018-03-20T12:38:29.227-04:002018-03-20T12:38:29.227-04:00Sabine said, All of this is pure speculation, none...Sabine said, <i>All of this is pure speculation, none of it is supported by evidence.</i><br /><br />Where I think theoretical physics errs grossly is the belief among many if they can model their pure speculation mathematically and have it be consistent with some current observations than they must be right. <br /><br />What disappoints me is the number of extraordinarily intelligent people Louis Tagliaferrohttps://www.blogger.com/profile/16698865662162457632noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-17904335547485926292018-03-20T11:56:33.990-04:002018-03-20T11:56:33.990-04:00" And inflation predicts that gravitational w..." And inflation predicts that gravitational waves produced in the early universe should leave an imprint in the cosmic microwave background (CMB). This is the CMB polarization signal that BICEP was looking for but didn’t find. There are, however, some satellite missions in the planning that will look for it with better precision." <br /><br />in light of the debate over inflation by neohttps://www.blogger.com/profile/17318664916557810347noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-38433593241981595362018-03-20T11:46:49.691-04:002018-03-20T11:46:49.691-04:00Seems the media were breathlessly reporting simila...Seems the media were breathlessly reporting similar nonsense 90 years ago ("Einstein on verge of major discovery," New York Times). But as an American already living in the parallel Trump universe, I'll make the jump to another one any day. Billhttps://www.blogger.com/profile/13243006930165511059noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-48410628215108466842018-03-20T11:33:46.634-04:002018-03-20T11:33:46.634-04:00Only specific prediction I've read connecting ...Only specific prediction I've read connecting a specific signal in the CMB to a specific scenario (a bounce) is Penrose's Conforming Cyclic CosmologyMatthewhttps://www.blogger.com/profile/03016608637645316849noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-77487139528768193512018-03-20T10:54:32.743-04:002018-03-20T10:54:32.743-04:00Thanks Sabine...I just spent an hour or so looking...Thanks Sabine...I just spent an hour or so looking at the preprint and then looking at the newspaper articles and then getting very confused!Hamishhttps://www.blogger.com/profile/05761239921397511759noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-66882185852509773562018-03-20T10:37:56.531-04:002018-03-20T10:37:56.531-04:00Dear Sabine
Your comments are, as always, the mos...Dear Sabine <br />Your comments are, as always, the most pertinent end rigorous we can find in the net.<br />Thanks to let us understand, in the right way, what mainstream information give us to eat every day!<br />RegardsLima Alfahttps://www.blogger.com/profile/02458140507183680218noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-43859321356019264642018-03-20T10:34:51.812-04:002018-03-20T10:34:51.812-04:00Hi Sabine,
Obviously Stephen Hawking is an amazin...Hi Sabine,<br /><br />Obviously Stephen Hawking is an amazing scientists. Scientists because of who he was and who people thought he was. I don't think it would be a bad thing if his final work didn't at least get people thinking that there might be ways to prove a multiverse, even if his last idea is unremarkable.<br /><br />If there was a multiverse, wouldn't the pull of gravity Michael John Sarnowskihttps://www.blogger.com/profile/00528454593064091302noreply@blogger.com