tag:blogger.com,1999:blog-22973357.post4132567695111306288..comments2023-09-27T07:44:19.769-04:00Comments on Sabine Hossenfelder: Backreaction: The Edge annual question 2012Sabine Hossenfelderhttp://www.blogger.com/profile/06151209308084588985noreply@blogger.comBlogger17125tag:blogger.com,1999:blog-22973357.post-71671233645247545242012-03-05T18:17:38.782-05:002012-03-05T18:17:38.782-05:00Dense aether model is not deep, elegant, or beauti...Dense aether model is not deep, elegant, or beautiful explanation. It just works.Zephirhttps://www.blogger.com/profile/06010623752049244967noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-15561738891275715662012-03-05T18:02:56.203-05:002012-03-05T18:02:56.203-05:00Physics should start thinking about a new mechanis...<i>Physics should start thinking about a new mechanism where not only electromagnetic and gravititational forces are combined through long distances, but also that the strong force is also combined with them as entanglement over long distances. The obvious connection between all three would be the pathway paradigm within a more fundamental medium. Those pathways might create a force whose Erichttps://www.blogger.com/profile/08213251864943443334noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-90405937911249284062012-03-05T13:16:46.284-05:002012-03-05T13:16:46.284-05:00My favorite deep explanation: Niels Bohr's for...My favorite deep explanation: Niels Bohr's formulation of quantum complementarity.<br /><br />My favorite elegant explanation: Occam's Razor.<br /><br />My favorite beautiful explanation: "De Rerum Natura" by Lucretius.DocGhttps://www.blogger.com/profile/17359004200002936544noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-22479754918151085972012-03-05T04:29:50.074-05:002012-03-05T04:29:50.074-05:00Hi Phil,
Your comment makes me realize that nobod...Hi Phil,<br /><br />Your comment makes me realize that nobody mentioned Feynman's path integral, which I think would have deserved a place among the elegant principles too. Best,<br /><br />B.Sabine Hossenfelderhttps://www.blogger.com/profile/06151209308084588985noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-15820223977846382542012-03-05T04:25:37.055-05:002012-03-05T04:25:37.055-05:00Sorry for this misunderstanding. No, that's no...Sorry for this misunderstanding. No, that's not what I meant. I meant, you don't need to detect a graviton to find evidence for quantum gravity. Much like you could argue that you don't need to detect a single photon to have evidence for quantum mechanics. I haven't made up my mind on Dyson's "hypothesis" that gravitons can't be detected at all. Sometimes I thinkSabine Hossenfelderhttps://www.blogger.com/profile/06151209308084588985noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-73441396636482157192012-03-05T04:13:30.113-05:002012-03-05T04:13:30.113-05:00OK I see...
I misunderstood then. I thought you w...OK I see...<br /><br />I misunderstood then. I thought you were saying that if somehow we confirm that gravitons exist this would not mean necessarily that gravity is quantized.Giotishttps://www.blogger.com/profile/03594944884584261018noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-24562101439894438042012-03-05T03:55:13.808-05:002012-03-05T03:55:13.808-05:00Hi Giotis,
The whole paper is a summary of exampl...Hi Giotis,<br /><br />The whole paper is a summary of examples for evidence of quantum gravity that are not detections of gravitons. Best,<br /><br />B.Sabine Hossenfelderhttps://www.blogger.com/profile/06151209308084588985noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-49777723472501107762012-03-05T03:14:04.202-05:002012-03-05T03:14:04.202-05:00Hi Bee,
Where exactly in this paper you explain w...Hi Bee,<br /><br />Where exactly in this paper you explain why the detection of gravitons isn't equivalent to evidence for quantum gravity?Giotishttps://www.blogger.com/profile/03594944884584261018noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-10869626258544173322012-03-05T01:16:31.030-05:002012-03-05T01:16:31.030-05:00Hi Cormac,
I think Brockman isn't trying to c...Hi Cormac,<br /><br />I think Brockman isn't trying to collect the best physicists alive. He is trying to collect some intellectuals, and his collection is also US-centered. To some extend it might be an attempt to gather some bright people in dark times and shine a light on them to say, look, we're not all overweight dummies who believe in creationism and that the sun goes around the Sabine Hossenfelderhttps://www.blogger.com/profile/06151209308084588985noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-64823256253813981272012-03-04T22:42:42.653-05:002012-03-04T22:42:42.653-05:00Some of my favorite comments I had shown earlier.
...Some of my <a href="http://eskesthai.blogspot.com/2012/01/what-is-your-favorite-deep-elegant-or.html" title="WHAT IS YOUR FAVORITE DEEP, ELEGANT, OR BEAUTIFUL EXPLANATION?" rel="nofollow">favorite comments</a> I had shown earlier.<br /><br />Best,PlatoHagelhttps://www.blogger.com/profile/00849253658526056393noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-61147502045603636632012-03-04T15:34:20.234-05:002012-03-04T15:34:20.234-05:00Great post but I'm a bit uncomfortable with al...Great post but I'm a bit uncomfortable with all this 'smart people' stuff so beloved of The Edge - it's the same story with the book Brockman has recently edited.It's not just the elitism that bothers me, it's more that most of my heros in physics neither sought nor received fame, but their work is highly respected by those in the know (Think Arthur Jaffe or Julius Wess orProfessor Rhttps://www.blogger.com/profile/08227006868149583276noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-29807872040870166052012-03-04T15:15:51.566-05:002012-03-04T15:15:51.566-05:00The long acting range of electromagnetism and grav...The long acting range of electromagnetism and gravity suggests a connection, as Feynman pointed out. However little has come out of that theoretically because physics theorists continue to use the paradigm from the standard model that clusters the weak force, the strong force, and electromagnetism together.<br /><br />Physics should start thinking about a new mechanism where not only Erichttps://www.blogger.com/profile/08213251864943443334noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-26482067195626425122012-03-04T15:01:48.151-05:002012-03-04T15:01:48.151-05:00A Foucault pendulum in a hermetically sealed vacuu...A Foucault pendulum in a hermetically sealed vacuum bunker is elegant. How does it know? <br /><br />That the universe as a whole is irrotational is counter to everything we observe about large scale dynamics.Uncle Alhttps://www.blogger.com/profile/05056804084187606211noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-46781891038425063272012-03-04T14:15:10.093-05:002012-03-04T14:15:10.093-05:00Hi Bee,
Thanks for the run down as it has me now ...Hi Bee,<br /><br />Thanks for the run down as it has me now want to read more of them in total. As for my own personal favourite I would have to agree with David Dalrymple as I can’t imagine any deeper explanation of what we find to be reality as to how it operates and yet it still being mysterious as to why. That is to admit yes we do have Feynman’s quantum expression of this with path Phil Warnellhttps://www.blogger.com/profile/15671311338712852659noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-9875278919345246292012-03-04T08:12:59.096-05:002012-03-04T08:12:59.096-05:00Hi Giotis,
Well, Eric Weinstein did. I could elab...Hi Giotis,<br /><br />Well, Eric Weinstein did. I could elaborate, but this isn't really the place. <a href="http://arxiv.org/abs/1010.3420" rel="nofollow">I wrote a whole paper on that here</a> and several blogposts too (use the label Quantum Gravity). Best,<br /><br />B.Sabine Hossenfelderhttps://www.blogger.com/profile/06151209308084588985noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-47032693444570600342012-03-04T07:40:32.116-05:002012-03-04T07:40:32.116-05:00Half the 'explanations' aren't explana...Half the 'explanations' aren't explanations at all, they're just statements (debatable or otherwise) or even just things. If you can't phrase it in a form involving 'why' it isn't an explanation. <br /><br />BTW, did anyone mention the risk thermometer explanation of why making bicycle helmets compulsory increases the number of deaths and serious injuries to Thomas Denthttps://www.blogger.com/profile/16355010444546331416noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-41813001702421353932012-03-04T07:27:00.257-05:002012-03-04T07:27:00.257-05:00I like the gauge principle where force interaction...I like the gauge principle where force interaction fields are introduced automatically by demanding a global symmetry to have a local validity.<br /><br />Nobody mentioned that?<br /><br />"to enter into an explanation why the detection of gravitons isn't equivalent to evidence for quantum gravity."<br /><br />What do you mean by that? Could you elaborate?Giotishttps://www.blogger.com/profile/03594944884584261018noreply@blogger.com