tag:blogger.com,1999:blog-10614348.post7447491134758401145..comments2024-01-22T11:26:37.599-08:00Comments on TGD diary: Is dark matter anyonic?Matti Pitkänenhttp://www.blogger.com/profile/13512912323574611883noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-10614348.post-5720585918879486652009-01-18T19:05:00.000-08:002009-01-18T19:05:00.000-08:00Anonymous and Dudiwie, sorry for not responding to...Anonymous and Dudiwie,<BR/> <BR/>sorry for not responding to your comments. My email address has changed and I have not received your comments.<BR/><BR/>The idea about Poincare invariant theory of gravitation was the original motivation of TGD. It however turned out the invariance is realized in much more subtle manner. If one believes that the selection of quantization axes has a geometric correlate as it indeed has in TGD in its recent form, Poincare and Lorentz symmetries must break somehow in this selection. Analog of spontaneous symmetry breaking would be in question in TGD framework.Matti Pitkänenhttps://www.blogger.com/profile/13512912323574611883noreply@blogger.comtag:blogger.com,1999:blog-10614348.post-81477447307975453612009-01-15T07:25:00.000-08:002009-01-15T07:25:00.000-08:00http://physicsworld.com/cws/article/print/19076http://physicsworld.com/cws/article/print/19076dudiviehttps://www.blogger.com/profile/13881865337869720928noreply@blogger.comtag:blogger.com,1999:blog-10614348.post-66445921804013698942009-01-15T07:20:00.000-08:002009-01-15T07:20:00.000-08:00A good, sound theory must not be unnecessarily ela...A good, sound theory must not be unnecessarily elaborate, while adequately explaining all the relevant experimental results. It must possess a certain clarity of purpose and symmetry which discloses a systematic underlying harmony in the universe that is being described. For example, physicists have long been troubled by the fact that Maxwell's equations are not perfectly symmetric because they describe an electrical charge, but no magnetic charge. Since no other theory has emerged to explain this asymmetry, physicists have long conducted experiments to search for an elusive "magnetic monopole," the discovery of which would allow Maxwell's equations to be rendered in a perfectly symmetric form. Of course, this sought for symmetry is a mathematical and not a physical property.<BR/><BR/> There is not reason for believing that the physical world should display such symmetry other than an almost religious belief that symbolic symmetry is a good thing and the universe is well-made.<BR/><BR/> Kiitos tästä. Olipa hyvää tekstiä; tosin vielä epäselvää joiltakin osin.<BR/> Newtonia olen minäkin miettinyt: pyörii juu - mikä pyöritti käyntiin.<BR/> Miten usko valtaa transcendenssin niin totaalisesti ja miten lasten kyky abstrahoida heikkenee sen mukaan mitä uskontojen, elämäkatsomusten ja kuoleman loputtomuuteen jää pois koulusta tai opetuksesta omaksi vaAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-10614348.post-4147406759958386882008-12-23T20:05:00.000-08:002008-12-23T20:05:00.000-08:00Happy to hear that you are interested on my musing...Happy to hear that you are interested on my musings. <BR/><BR/>I am beginning to understand the formulation and interpretation of the theory at the fundamental parton level, where everything has to be understood in terms of modified Dirac equation for second quantized free spinor fields.<BR/><BR/>Essentially 2-D fermions in electroweak magnetic fields are in question. This allows powerful intuitive grasp to the situation.<BR/><BR/>During last weeks many unproven must-be-true's have turned out to be un-necessary strong conjectures and some constructions are dramatically simplified (I am not able to say "simply wrong"!). But this is how theory builds itself: first a burst of ideas and then a selection process leaving only those which are the fittest. I must however confess that sometimes I feel myself very stupid. <BR/><BR/><BR/>Merry Christmas and Happy New Year.Matti Pitkänenhttps://www.blogger.com/profile/13512912323574611883noreply@blogger.comtag:blogger.com,1999:blog-10614348.post-51230868705516515122008-12-23T14:18:00.000-08:002008-12-23T14:18:00.000-08:0012 23 08Anyons are interesting. I like the way Max...12 23 08<BR/><BR/>Anyons are interesting. I like the way Maxwells eqns look in two dimensions. With that said, you know that I will havta read and reread what you have written a thousand times before I have anything of worth to say. So Merry Christmass Matti:) Keep writing your arcana, it leaves a rich legacy.Mahndisa S. Rigmaidenhttps://www.blogger.com/profile/08507292526980604567noreply@blogger.com