tag:blogger.com,1999:blog-10614348.post6105148321911022697..comments2023-01-19T00:50:01.428-08:00Comments on TGD diary: Twistor lift and the reduction of field equations by SH to holomorphyMatti Pitkänenhttp://www.blogger.com/profile/13512912323574611883noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-10614348.post-59393347669948459252017-02-13T18:34:03.167-08:002017-02-13T18:34:03.167-08:00
There is a very deep connection between sensory r...<br />There is a very deep connection between sensory reality and quantum theory. Basically all sensory and cognitive percepts are quantum measurements of some commuting observables. <br /><br />For instance, visual color can be related to measurements of - well- color charges. This is not a joke. The algebra of color charges is similar to algebra of colors and this motivated the term color as a joke. Joke that turned to be not at all a joke.<br /><br />Effective 2-dimensionality is only an approximate notion in adelic physics: also discrete data is needed in p-adic sector and correponds to the extensions of rationals. There is also the interpretation of predictions of quantum theory and here 4-D space-time is absolutely necessary. Physics is much more than the calculations. Every quantum measurement is interpereted in terms of concepts related to classical space-time. The people talking about holography usually forget completely this aspect. <br /><br />The 2-D in information theoretic sense reduces to holomorhy properties of the twistor spaces of space-time surfaces as surfaces in twistor space of M^4xCP2. The idea is very simple: analytic function is coded by data at 1-D curve. M^8-H duality says that space-time surfaces can be regarded as quaternionic surfaces in M^8 and here quaternicity of tangent spaces of space-time surface determines dynamics (not quite actually, they contain integrable distribution of commutative 2-planes). Quaternion analyticity comes in play and means again that 1-D data correpond to function in 4-D. <br /><br /><br /><br />Popular science is its own fairy world, which does not have much to do with real science. I think that multiverse lives only in popular science anymore. Emergence of space-time is the newest fashion. These fads live few years in science and then continue decade or two as fads in popular science. A lot of bestsellers are written. Science industry needs this.Matti Pitkänenhttp://tgdtheory.finoreply@blogger.comtag:blogger.com,1999:blog-10614348.post-82202313626640780602017-02-13T09:33:54.236-08:002017-02-13T09:33:54.236-08:00Interesting, thank you for the reply. It's pro...Interesting, thank you for the reply. It's probably just the mathematical part of my brain adding stuff to the regular part of the sleep/wake cycle. I suppose the conclusion is that there is not much of a connection between physical reality and sensory perception as it has evolved? Did evolution have no need for this 2 dimensionality then? How do we get along at all? I understand the thing about spacetime surfaces being like zombies in TGD and there being building blocks and all that.. indeed multi-sheetedness seems to be there.<br /><br />Another thing, I cant believe, that in this day and age, there are "serious scientists" still spouting the nonsense of this multiverse idea that there exists some other universe where almost everything is the same except one minor detail or the other. I heard some astronomer on a national radio program saying this the other day... I think they've lost their minds, and TGD makes more sense than what I gather from the "popular scientific consensus"<br /><br /><br />Crow-https://www.blogger.com/profile/11587191916122583498noreply@blogger.comtag:blogger.com,1999:blog-10614348.post-40380687506745898442017-02-10T19:14:46.717-08:002017-02-10T19:14:46.717-08:00My view is that sensory experience does not direct...My view is that sensory experience does not directly reflect it. The data needed to construct space-time surfaces are 2-D. Same about quantum states. This does not mean that experience would be 2-D. Many-sheeted space-time also complicates things. <br /><br />There is also the number theretic discretisation as intersection of real and p-adic surfaces consting of algebraic points. These data are needed at least for p-adic continuation and define cognitive representations. This breaks strongest form of holography.<br /><br />This picture is outcome of long work to understand in more detail how TGD variants of twistors would allow to construct general solution of field equations. Holomorphy becomes the key notion and quite expectedly.<br /><br />The ultimate goal is to understand the construction of scattering amplitudes in terms of twistors and classical 2-D data about space-time surfaces and connections with Witten's twistor theory are highly suggestive.<br />Matti Pitkänenhttp://tgdtheory.finoreply@blogger.comtag:blogger.com,1999:blog-10614348.post-28822401564805387422017-02-10T11:28:04.694-08:002017-02-10T11:28:04.694-08:00"The 1-D data could correspond to the boundar... "The 1-D data could correspond to the boundary of the string world sheet."<br /><br />This is interesting.. lets say, everything in this post is "true" or at least most of it... would it be possible to personally experience this 1 dimensionality in some way? I ask this, because, during one of my meditations before sleeping, I recalled relatively mundane events from earlier in the day but was seeing them unfold from a 3rd person perspective.. the "view" was monochromatic and a little bit fuzzy, but there was a very bright spark looking thing that zigged and zagged very quickly and was apparently tracing out a path that I understand now to be perhaps a worldline or something like that. The path the spark was travelling had both timelike and spacelike aspects to it<br /><br /><br />Crow-https://www.blogger.com/profile/11587191916122583498noreply@blogger.com