tag:blogger.com,1999:blog-22973357.post3671697328142476595..comments2023-09-27T07:44:19.769-04:00Comments on Sabine Hossenfelder: Backreaction: Embrace your 5th dimension.Sabine Hossenfelderhttp://www.blogger.com/profile/06151209308084588985noreply@blogger.comBlogger14125tag:blogger.com,1999:blog-22973357.post-74992313151410229642015-09-09T04:41:28.645-04:002015-09-09T04:41:28.645-04:00At a small enough scale, there's no such thing...At a small enough scale, there's no such thing as a uniform spherical infalling shell: it has to be made out of individual particles. Even a spherical infalling shell made up a single photon (a tricky thing to construct) has to have a polarization, and when it falls into the black hole its position presumably gets measured (or for the non-Copenhagen inclined, the quantum state of the black Rhttps://www.blogger.com/profile/18277926218867241820noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-15899821704027846082015-08-30T06:36:06.813-04:002015-08-30T06:36:06.813-04:00Hi Bee,
I think this article sets the stage for w...Hi Bee,<br /><br />I think this article sets the stage for what we want to examine further regarding black hole evaporation. What this might mean regarding supertranslations. I am interested to see how this term is explained, regarding the continue exploration of information that is not lost, and what this might mean regarding blackholes.<br /><br />Best,PlatoHagelhttps://www.blogger.com/profile/00849253658526056393noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-30346427993481271252015-08-29T06:48:00.211-04:002015-08-29T06:48:00.211-04:00A couple of days ago I was at a barbeque explainin...A couple of days ago I was at a barbeque explaining a theory idea that I had to one of my nephews. He then began telling me about the Holographic Universe idea and also mentioned black holes. While I had heard about the Holographic Universe concept I wasn't too familiar with it. Your post really clarified in my mind what this is all about. Thank you.David Schroederhttps://www.blogger.com/profile/18048116250413347228noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-27116676865341891112015-08-28T11:46:23.690-04:002015-08-28T11:46:23.690-04:00Sorry in my above question, I should have used the...Sorry in my above question, I should have used the word *holography* rather than duality.kashyap vasavadahttps://www.blogger.com/profile/10732897306667764590noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-19688219404160618202015-08-28T06:13:57.946-04:002015-08-28T06:13:57.946-04:00Chris,
I don't know what you mean with how th...Chris,<br /><br />I don't know what you mean with how they "mechanically arise". If you want more technical details, I recommend <a href="http://arxiv.org/abs/1412.5704" rel="nofollow">Joe Polchinski's brief review</a> which is really well done and informative. Best,<br /><br />B.Sabine Hossenfelderhttps://www.blogger.com/profile/06151209308084588985noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-23795982626746336182015-08-28T06:12:19.147-04:002015-08-28T06:12:19.147-04:00Arun,
Well, we experience both of course, it'...Arun,<br /><br />Well, we experience both of course, it's just that the way we interpret it is the computationally easier way, which means it's the description in which there are weakly coupled localized particles. Best,<br /><br />B.Sabine Hossenfelderhttps://www.blogger.com/profile/06151209308084588985noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-77329938480091404542015-08-28T00:21:17.354-04:002015-08-28T00:21:17.354-04:00JimV, sorry I've fixed that typo. Best,
B.JimV, sorry I've fixed that typo. Best,<br />B.Sabine Hossenfelderhttps://www.blogger.com/profile/06151209308084588985noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-37844838306505344172015-08-28T00:18:17.714-04:002015-08-28T00:18:17.714-04:00Hi Uncle,
Thanks, I've fixed that. Should hav...Hi Uncle,<br /><br />Thanks, I've fixed that. Should have known this of course... Best,<br /><br />B.Sabine Hossenfelderhttps://www.blogger.com/profile/06151209308084588985noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-45585575678607233252015-08-27T23:50:39.239-04:002015-08-27T23:50:39.239-04:00Could you say a few words about the way dualities ...Could you say a few words about the way dualities mechanically arise?<br /><br />On the side of the non-string dual, it can only ever be precisely what we define it to be. Because on the string side we use over-complete functions and curve fit everything into position. <br /><br />Which means there has to be a precise concept of what we're steering towards. It's a 1:1 resolution. You can Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-22973357.post-23433365292031737162015-08-27T21:34:38.116-04:002015-08-27T21:34:38.116-04:00Thanks for this excellent overview.
My mother maj...Thanks for this excellent overview.<br /><br />My mother majored in English and was an English teacher, and relentlessly corrected my grammar. Also I have read a lot of good books. So I have a heuristic feeling that "... exactly how information may escapes a black hole" should be "... exactly how information may escape a black hole". The first sounds wrong and I can hear my JimVhttps://www.blogger.com/profile/10198704789965278981noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-28290300065325090442015-08-27T17:48:01.956-04:002015-08-27T17:48:01.956-04:00If we live in a universe with an exact dual to its...If we live in a universe with an exact dual to its physics, then why do we experience only one side of the duality? <br /><br />Maybe the universe is self-dual?Arunhttps://www.blogger.com/profile/03451666670728177970noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-34577750055575120792015-08-27T16:19:05.530-04:002015-08-27T16:19:05.530-04:00Since quantum theory of strong,em and weak interac...Since quantum theory of strong,em and weak interactions is reasonably well understood,are people trying to get at quantum theory of gravity by duality arguments? Any success yet?kashyap vasavadahttps://www.blogger.com/profile/10732897306667764590noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-20522723010221395722015-08-27T16:07:10.747-04:002015-08-27T16:07:10.747-04:00Schlegel diagrams project polytopes into one fewer...Schlegel diagrams project polytopes into one fewer dimension. 3D fullerenes project as 2D nets with no edge (bond) overlap. Of some 60 million indexed organic compounds, about a dozen do not cooperate. <br /><br />http://photos1.blogger.com/x/blogger2/760/32853493726544/1600/177718/schlegel_diagrams.png<br />https://caagt.ugent.be/CaGe/Archive/tour.html<br /> cooperative<br />http://Uncle Alhttps://www.blogger.com/profile/05056804084187606211noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-85018427052440238532015-08-27T14:28:40.042-04:002015-08-27T14:28:40.042-04:00If the holographic pictures is true, how could be ...If the holographic pictures is true, how could be face the interior singularity of spacetime from the boundary? What is its final destiny? Jhttps://www.blogger.com/profile/01942050607289418780noreply@blogger.com