tag:blogger.com,1999:blog-10614348.post1004234015582278940..comments2024-01-22T11:26:37.599-08:00Comments on TGD diary: Preferred extremals of Kähler action and perfect fluidsMatti Pitkänenhttp://www.blogger.com/profile/13512912323574611883noreply@blogger.comBlogger9125tag:blogger.com,1999:blog-10614348.post-9427525216371387002010-12-17T13:42:16.393-08:002010-12-17T13:42:16.393-08:00Also a Plancks constant hierarchy
http://www.natur...Also a Plancks constant hierarchy<br />http://www.nature.com/news/2010/101215/full/news.2010.678.htmlUllahttps://www.blogger.com/profile/16634036177244152897noreply@blogger.comtag:blogger.com,1999:blog-10614348.post-4922963580020022862010-12-17T12:39:09.523-08:002010-12-17T12:39:09.523-08:00I have often seen the phenomen that people make re...I have often seen the phenomen that people make regressions = goes back in times as instance to childhood and begins to act as a child. This would be explained by sides in the Big Book, labeled by hbar. This label would also be consciousness and time (memory). The consciousness level is much lower as child, and this could be seen as the decoherence level too. Consciousness would in that way be collapsed coherence :) Low decoherence means high quantum biological state and 'spirituality' or 'Life', what is charachteristic of children, and alsoof people with high age.<br /><br />You talk of consciousness as quantum jumps, and those quantum jumps is then the same as decoherence or perceptions.<br /><br />Thinking about the future is most energy demanding of all thinking, and is a projection of possibilities into future (frontal lobe) as a hierarchial flux tube?<br /><br />Seen in this way the consciousness is coherent, and your quantum jumps need a small modification? Quantum jumps = entanglements, excitations, but it is not always about that? Self is the decoherent and differentiated state.<br /><br />Sorry for posting this here. I need your opinion on it.Ullahttps://www.blogger.com/profile/16634036177244152897noreply@blogger.comtag:blogger.com,1999:blog-10614348.post-1509829230499550922010-12-17T02:34:35.049-08:002010-12-17T02:34:35.049-08:00Beautiful graphics these rings inside rings inside...Beautiful graphics these rings inside rings inside... In nuclear string model one could consider linking and knotting of nuclear strings to form analogous structures.Matti Pitkänenhttps://www.blogger.com/profile/13512912323574611883noreply@blogger.comtag:blogger.com,1999:blog-10614348.post-32491310147907630772010-12-17T02:29:24.801-08:002010-12-17T02:29:24.801-08:00To Ulla:
Sticking into belief system seems to be...To Ulla: <br /><br />Sticking into belief system seems to be the worst disease of this profession. It is a pity if Lubos is not able to take a fresh start and forget M-theory. It is very difficult to get rid of strong beliefs of early youth because they have been adopted so emotionally. <br /><br />They seem to have found a brain area activated differently during thinking of recent as compared to remembering and imagining future or past.<br /><br /> If brain areas are characterized by the time scale of memory and planned action coded by the value of Planck constant coding for the frequency scale of corresponding contribution EEG (in generalized sense involving much lower frequencies than 100 Hz), this would not be surprising. <br /><br />An interesting question is whether both rememberig and imagination take place in future and past.Matti Pitkänenhttps://www.blogger.com/profile/13512912323574611883noreply@blogger.comtag:blogger.com,1999:blog-10614348.post-83882448791349885602010-12-16T23:49:02.341-08:002010-12-16T23:49:02.341-08:00yes that http://arxiv.org/abs/1012.2698 is quite i...yes that http://arxiv.org/abs/1012.2698 is quite interesting wonder if the industrial sector, busy layering the mantel with long chain elastic polymers, may envision an actual photonic substrate.Timnoreply@blogger.comtag:blogger.com,1999:blog-10614348.post-74196521466606946112010-12-16T12:53:14.350-08:002010-12-16T12:53:14.350-08:00Quite off topic. Brain time travel.
http://neuros...Quite off topic. Brain time travel.<br /><br />http://neuroskeptic.blogspot.com/2010/12/time-travelling-brain.html<br />When seems to be something external to the what, how, and where of the situation. But this creates a problem for neuroscientists.<br /><br />We think we know how the fact that the brain could store the concept of "walking down the street" (or "walking" and "street"). Very roughly, simple sensory impressions are thought to get built up into more and more complex combinations, to cells that remember the face (Jennifer Aniston-cells in hippocampus)in medial temp.lobe. http://www.nature.com/nature/journal/v435/n7045/abs/nature03687.html results suggest an invariant, sparse and explicit code...<br />But the fact that we can take any given scene, and effortlessly think of it as either "past", "present", or "future", is puzzling under this view because, as I said, the scene itself is the same in all cases. And it's not as if we have a sense devoted to time: the only time we're ever directly aware of, is "right now". brain activity associated with "mental time travel": Consciousness of subjective time in the brain. http://www.ncbi.nlm.nih.gov/pubmed/21135219<br /><br />Hippocampus is the back of the book = right now, implicit and explicit?Ullahttps://www.blogger.com/profile/16634036177244152897noreply@blogger.comtag:blogger.com,1999:blog-10614348.post-23130577975567844092010-12-16T12:34:17.119-08:002010-12-16T12:34:17.119-08:00Poor Lubos, he is showing some opportunistic, chao...Poor Lubos, he is showing some opportunistic, chaotic behaviour. But he isn't yet in the same situation as you was some years ago.<br /><br />Kea: LHC has begun to rule out popular ideas from string theory, http://arxiv.org/abs/1012.3375<br /><br />Borromean rings: This gives rise to a whole new hierarchy of possible states with Efimov states at the bottom. http://arxiv.org/abs/1012.2698<br /><br />The ship is slowly turning around.Ullahttps://www.blogger.com/profile/16634036177244152897noreply@blogger.comtag:blogger.com,1999:blog-10614348.post-87757134635213156132010-12-15T21:09:03.125-08:002010-12-15T21:09:03.125-08:00Of course you can! I am flattered.
TGD has one c...Of course you can! I am flattered. <br /><br />TGD has one common element with Kaluza Klein theory and this is the idea that symmetries of compact space define symmetries of particle physics: now electroweak and color symmetries. Otherwise the picture is totally different since space-time is surfaces rather than base space of bundle.<br /><br />The action principle defining the dynamics of space-time surfaces is formally Maxwell action with Maxwell field replaced with Kahler form of CP_2 projected to tensor field at space-time surfaces. This means geometrization of U(1) part of classical em field. Quite generally, both classical electroweak and color gauge fields are geometrized in terms of sub-manifold geometry. Once you know the space-time surface you know all classical gauge fields.<br /><br />Actually even more, you know also the classical gravitational field as induced metric which means that metric tensor is projection of metric tensor of imbedding space M^4xCP_2. You have sub-manifold gravity. <br /><br />All this means that all classical boson fields are expressible in terms of 4 imbedding space coordinates and their gradients when 4 space-time coordinates are chosen to by some imbedding space coordinates. This is incredible reduction in the number of degrees of freedom. <br /><br />The routine counter argument which allows the colleague to get rid of trouble reading further (15 books to read now, what you leave behind you find ahead;-)!) is that this approach cannot fully reproduce Einsteinian gravitation. This is true: the requirement of imbeddability of metric to M^4xCP_2 is an enormously powerful constraint. On the other hand, the basic problem of Einsteinian gravity is that it allows quite too many unphysical metrics: typical metric gives rise to non-physical energy momentum tensor by Einstein's equations. <br /><br /><br /><br />The basic difference as compared to Maxwell's theory can be seen already in simplest cases. For instance, only a finite spacet-time region carrying constant magnetic field allows the imbedding as space-time surface. This I call topological field quantization and leads to many-sheeted space-time concept. For preferred extremals these space-time sheets would behave like perfect fluids and dissipation and viscosity would be due to splitting of space-time to these pieces.Matti Pitkänenhttps://www.blogger.com/profile/13512912323574611883noreply@blogger.comtag:blogger.com,1999:blog-10614348.post-11816634829270881872010-12-15T12:39:43.650-08:002010-12-15T12:39:43.650-08:00Matti,
Thanks for the article. I am still posting...Matti,<br /><br />Thanks for the article. I am still posting sometimes on the other bloggers and if you do not mind I would like to hash out these differences of everyone's perceptions. pesla.blogspot com.<br /><br />I am not a fan of Kaluza-Klein theory but some concept of it applies.<br /><br />Maxwell's ideas had a residual flux of sorts- are you discussing this?<br /><br />I cannot say I understand exactly what gravity, supergravity and the like are- especially when one considers information structures.<br /><br />ThePeSla who is a fan and especially agrees with section 3 above. How does gravity fit into this?L. Edgar Ottohttps://www.blogger.com/profile/00525169618204198073noreply@blogger.com