tag:blogger.com,1999:blog-22973357.post7744054942969244767..comments2023-09-27T07:44:19.769-04:00Comments on Sabine Hossenfelder: Backreaction: The cube of physical theoriesSabine Hossenfelderhttp://www.blogger.com/profile/06151209308084588985noreply@blogger.comBlogger33125tag:blogger.com,1999:blog-22973357.post-70814648147979556522011-06-10T10:13:41.400-04:002011-06-10T10:13:41.400-04:00I have stumbled across this particular blog articl...I have stumbled across this particular blog article of yours - very interesting to me. Congratulations, you have a new regular follower. To try and provide in return an interesting tidbit for you to consider return, starting from free accociating about mathematically-oriented women and cubes, have you ever heard of <a href="http://www.agnesscott.edu/lriddle/women/stott.htm" rel="nofollow">rickyjameshttps://www.blogger.com/profile/09303372085007768799noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-49530163283537824812011-06-05T11:56:09.310-04:002011-06-05T11:56:09.310-04:00The issue with this cube, i.m.o. is that people fr...The issue with this cube, i.m.o. is that people from high school onward are taught misleading things about units, dimensions etc. in physics. It's just a handy tool to do computations, but physics is in principle dimensionless. Many people believe that the way we have assigned (supposedly) "incompatible dimensions" is somehow fundamental, while in reality, it is just a convention.<Count Iblishttps://www.blogger.com/profile/17234653545597441999noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-87764275872497036172011-05-30T00:08:22.864-04:002011-05-30T00:08:22.864-04:00Hi Robert,
You've taken a couple of wrong tur...Hi Robert,<br /><br />You've taken a couple of wrong turns there and I suggest you shut up now or I'll bury your comments in digital Nirvana. Salut,<br /><br />B.Sabine Hossenfelderhttps://www.blogger.com/profile/06151209308084588985noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-15280510569951522212011-05-29T22:17:16.520-04:002011-05-29T22:17:16.520-04:00Robert,
My suggestion would be that the woman get ...Robert,<br />My suggestion would be that the woman get her own blog, er car, and there would be no further disputes with the man over who is to drive.Erichttps://www.blogger.com/profile/08213251864943443334noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-36299287697444376702011-05-29T21:45:58.197-04:002011-05-29T21:45:58.197-04:00A woman is riding in a car with a man.
He makes f...A woman is riding in a car with a man.<br /><br />He makes four wrong turns, but is unwilling to seek the knowkedge of others who have the insight to reach the goal.<br /><br />The woman knows the correct way to the goal.<br /><br />Would you recommend that the woman remain silent? Out of respect? Out of fear? Out of a desire not to rock the boat?<br /><br />I think she should speak up loud and Robert L. Oldershawhttps://www.blogger.com/profile/15396555790655312393noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-16424817321151607082011-05-29T13:00:01.540-04:002011-05-29T13:00:01.540-04:00Robert,
Leonard Susskind:
"One of the deepes...Robert,<br /><br />Leonard Susskind:<br />"One of the deepest lessons we have learned over the past decade is that there is no fundamental difference between elementary particles and black holes."<br /><br />If you repeat it often enough maybe some of us will actually believe it. Apparently for you repetition is the the substance of a good argument.Erichttps://www.blogger.com/profile/08213251864943443334noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-14273567714095513872011-05-29T12:50:11.395-04:002011-05-29T12:50:11.395-04:00Leonard Susskind:
"One of the deepest lessons...Leonard Susskind:<br />"One of the deepest lessons we have learned over the past decade is that there is no fundamental difference between elementary particles and black holes."<br /><br />Discrete Scale Relativity was there long before "the past decade". That idea and the reason for the equivalence was published in 1985. Theoretical physicists did everything in their power toRobert L. Oldershawhttps://www.blogger.com/profile/15396555790655312393noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-13222396674751975542011-05-27T07:48:27.559-04:002011-05-27T07:48:27.559-04:00Hi Bee,
“I think in a field where the essential s...Hi Bee,<br /><br /><i>“I think in a field where the essential statements are mathematical, the subtleties of different languages don't matter that much.”</i><br /><br />You are of course right if all that’s considered as relevant is action and outcome. It’s also true that when physics was primarily concerned with what we could see, or what we could have to be seen, the maths would take care Phil Warnellhttps://www.blogger.com/profile/15671311338712852659noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-85496547082032514622011-05-27T01:28:38.318-04:002011-05-27T01:28:38.318-04:00I should add, I guess, that the fine structure con...I should add, I guess, that the fine structure constant has the electric charge, e, as the third constant within it.<br />Perhaps e should replace G as the third dimension of the cube of reality. This doesn't seem very intuitive but there must be at least one piece of the puzzle that isn't intuitive or the quantum gravity puzzle would have been solved long ago.<br /><br />We know the Erichttps://www.blogger.com/profile/08213251864943443334noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-22510065382710711122011-05-26T22:00:18.318-04:002011-05-26T22:00:18.318-04:00I think 'Verschränkung may be the orderly and ...I think 'Verschränkung may be the orderly and more original description but entanglement gets at the dependent nature of the relationships between two or more particles. Just like trying to untie a knot there can be unforeseen consequences unless one does it very carefully.<br /><br />As far as constants and which are "real" - if only people would take a clue from the fine structureErichttps://www.blogger.com/profile/08213251864943443334noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-79360736147695814522011-05-26T14:33:33.752-04:002011-05-26T14:33:33.752-04:00Ok, here is something more on-topic.
What if natu...Ok, here is something more on-topic.<br /><br />What if nature's actual "cube" is a tesseract, i.e.,<br /><br />http://en.wikipedia.org/wiki/Tesseract <br /><br />which is a cube within a cube. Now you have two sets of vertices, with discretely different values for the measures at the corresponding vertices.<br /><br />The final step is to consider an unbounded tesseract, which is aRobert L. Oldershawhttps://www.blogger.com/profile/15396555790655312393noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-27382901990948075472011-05-26T13:08:00.249-04:002011-05-26T13:08:00.249-04:00Some notes about variations of fundamental constan...Some notes about variations of fundamental constants:<br /><br />In discussion between L. B. Okun, G. Veneziano and M. J. Duff, concerning the number of fundamental dimensional constants in physics (physics/0110060). They advocated correspondingly 3, 2 and 0 fundamental constants. Why they not considering case,where only 1 constant Planck-Dirac's constant; h/2pi=1,054x10^-27ergxsec?<br /><br Yurihttps://www.blogger.com/profile/17094854801996016921noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-64926756545822876882011-05-26T12:21:54.996-04:002011-05-26T12:21:54.996-04:00G which is essentially the strength by which matte...<i>G which is essentially the strength by which matter deforms the background geometry.... These are Ricci-flat, but the curvature tensor doesn't necessarily also vanish</i><br /><br />Somebody is not intoxicated into clamorous stupor by quantum gravitation! A GR curvature background is just as easily a teleparallel torsion background acting like Lorentz force - that is chiral, and testably Uncle Alhttps://www.blogger.com/profile/05056804084187606211noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-40930184118345540422011-05-26T09:16:13.269-04:002011-05-26T09:16:13.269-04:00Hi Phil,
I think in a field where the essential s...Hi Phil,<br /><br />I think in a field where the essential statements are mathematical, the subtleties of different languages don't matter that much. Most of the important works from a century ago have been translated into English I believe, and though one or the other expression might have gotten lost in translation I don't think you've missed much.<br /><br />Yes, the English word &Sabine Hossenfelderhttps://www.blogger.com/profile/06151209308084588985noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-29270492555440194442011-05-26T07:08:59.391-04:002011-05-26T07:08:59.391-04:00Hi Bee,
So this came from a random perusing of on...Hi Bee,<br /><br />So this came from a random perusing of one of Stefan’s many books, which I find in itself interesting. That is as I have quite a collection myself I’d be curious as to which ones he has and how many of the titles we share. This one for sure I know I don’t have and impressed that it be in French as of course all of mine being in English; just another non obvious advantage of Phil Warnellhttps://www.blogger.com/profile/15671311338712852659noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-90491142320008406212011-05-26T06:32:59.590-04:002011-05-26T06:32:59.590-04:00I'm surprised somebody wrote a paper to impres...I'm surprised somebody wrote a paper to impress a girl. Huh, what? Are there actually girls out there impressed by papers? <br /><br />What was the girl's name, if so? Emmy Noether? <br /><br />Flowers and a smile always worked best for me, but wow, yet another "pick-up" trick. Now I have to go write a paper to impress my wife, so cya.Steven Colyerhttps://www.blogger.com/profile/10435759210177642257noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-90992341477685197212011-05-26T06:31:48.489-04:002011-05-26T06:31:48.489-04:00This comment has been removed by the author.Steven Colyerhttps://www.blogger.com/profile/10435759210177642257noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-30862047576960841792011-05-26T02:22:56.079-04:002011-05-26T02:22:56.079-04:00Here is a nice interactive version:
http://cjwainw...Here is a nice interactive version:<br />http://cjwainwright.co.uk/maths/physicscube/<br /><br />I've definitely seen it, but not in that book. If I remember where, I'll tell.<br /><br />@tytung: Stachel calls it Bronstein's cube:<br />http://www.phy.syr.edu/research/hetheory/minnowbrook/stachel.html<br />and others attributed it to Penrose:<br />http://users.physik.fu-berlin.de/~Cristi Stoicahttps://www.blogger.com/profile/00577217435388643300noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-27004303324167541112011-05-26T02:09:09.896-04:002011-05-26T02:09:09.896-04:00I've also seen this cube before on some QG pap...I've also seen this cube before on some QG paper. Maybe John Stachel's. Didn't give much thought abt it at that time. I am intrigued of the idea that taking these limits with diff order might give diff results.<br />Regarding Joy, all I know is that he wrote a series of papers on Bell's theorem that I've refuted on arxiv.tytunghttps://www.blogger.com/profile/05777947785613061617noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-28303486316284571902011-05-26T01:28:07.525-04:002011-05-26T01:28:07.525-04:00Robert: Please stop it. You probably think you'...Robert: Please stop it. You probably think you're witty, but actually you're just annoying everybody with your off-topic comments that nobody wants to hear. Thanks,<br /><br />B.Sabine Hossenfelderhttps://www.blogger.com/profile/06151209308084588985noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-57838339263865231552011-05-25T23:59:13.347-04:002011-05-25T23:59:13.347-04:00Is Woofy getting nervous?
Clearly he has broken o...Is Woofy getting nervous?<br /><br />Clearly he has broken off is leash.<br /><br />There is a spanking coming for him at sci.astro.researchRobert L. Oldershawhttps://www.blogger.com/profile/15396555790655312393noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-37131924196359081572011-05-25T23:51:20.525-04:002011-05-25T23:51:20.525-04:00Hi Nemo,
Haha, you are right of course. I should ...Hi Nemo,<br /><br />Haha, you are right of course. I should read my own blog ;-) Best,<br /><br />B.Sabine Hossenfelderhttps://www.blogger.com/profile/06151209308084588985noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-8962021112571635232011-05-25T23:34:57.242-04:002011-05-25T23:34:57.242-04:00Hi Bokulich,
Thanks, that's interesting. Best...Hi Bokulich,<br /><br />Thanks, that's interesting. Best,<br /><br />B.Sabine Hossenfelderhttps://www.blogger.com/profile/06151209308084588985noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-33739018117664621652011-05-25T22:19:34.286-04:002011-05-25T22:19:34.286-04:00In geometry, the tesseract, or hypercube, is a reg...<i>In geometry, the <a href="http://en.wikipedia.org/wiki/Tesseract#The_Tesseract_in_Literature_and_Art" rel="nofollow">tesseract</a>, or hypercube, is a regular convex polychoron with eight cubical cells. It can be thought of as a 4-dimensional analogue of the cube. Roughly speaking, the tesseract is to the cube as the cube is to the square.<br /><br /> Generalizations of the cube to PlatoHagelhttps://www.blogger.com/profile/00849253658526056393noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-62735759396187724792011-05-25T22:16:35.704-04:002011-05-25T22:16:35.704-04:00Hi Bee,
Hmmm....just wonder what these young mind...Hi Bee,<br /><br />Hmmm....just wonder what these young minds think?<br /><br />Engaging perspective of the cube is with it's faces, or, from inside?<br /><br />Calorimeter or Colorimetric, and what is inside has a defined coordinate? A cubed parameter detailing a "configuration point" in space?<br /><br /><br /><a href="http://z.about.com/d/arthistory/1/7/X/i/dali_pma_05_13.jpg" PlatoHagelhttps://www.blogger.com/profile/00849253658526056393noreply@blogger.com