tag:blogger.com,1999:blog-23400750.post115608966243701938..comments2023-11-03T11:32:01.540+00:00Comments on Thought Experiments : The Blog: Neil Turok's Colliding UniversesBryan Appleyardhttp://www.blogger.com/profile/08276787058430388582noreply@blogger.comBlogger8125tag:blogger.com,1999:blog-23400750.post-92140397351648225412007-07-26T01:53:00.000+00:002007-07-26T01:53:00.000+00:00Ted Tegmark (MIT) has shown that within 10 raised ...Ted Tegmark (MIT) has shown that within 10 raised to the power 10 trillion light years (this is a really big number; for example, our known universe has 10 raised to the power 81 protons)there will be at least one earth identical to ours in which all of us are doing exactly the same things as we are here.<BR/><BR/>Within that radius will be any number of earths where we are doing different thingsAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-23400750.post-1156268824002167432006-08-22T17:47:00.000+00:002006-08-22T17:47:00.000+00:00'Easy Listening Sum Classics'? Well, if you take t...'Easy Listening Sum Classics'? Well, if you take the following link, <BR/><BR/>http://us.metamath.org/mpegif/mmmusic.html<BR/><BR/>then you'll be able to listen to some famous mathematical proofs set to music!Gordon McCabehttps://www.blogger.com/profile/09151162643523937086noreply@blogger.comtag:blogger.com,1999:blog-23400750.post-1156218721025982122006-08-22T03:52:00.000+00:002006-08-22T03:52:00.000+00:00GM, my major was in History and Philosophy of Scie...GM, my major was in History and Philosophy of Science (with a minor-major in Aerody...no, maybe that should be a 'very flat minor-minor diminished seventh'....sorry, I digress). One thing I could never quite get an 'ear' for was mathematics as an aesthetic discipline, an art. It drives me nuts with envy when the Sum Monkies use words like 'elegant', 'beautiful' and (yes) 'poetic' to describe Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-23400750.post-1156182461424103632006-08-21T17:47:00.000+00:002006-08-21T17:47:00.000+00:00Like yourself, Bryan, I went to university to stud...Like yourself, Bryan, I went to university to study English Literature, so I certainly wasn't insulted by such a suggestion! Are the more speculative parts of modern physics a form of poetry? If we assume that theories such as M-theory really are of no physical relevance, then what we have are extremely beautiful pieces of mathematics, but slightly more than merely pure mathematics, for the Gordon McCabehttps://www.blogger.com/profile/09151162643523937086noreply@blogger.comtag:blogger.com,1999:blog-23400750.post-1156139876827759052006-08-21T05:57:00.000+00:002006-08-21T05:57:00.000+00:00Good grief, Gordon, I had no idea you were in this...Good grief, Gordon, I had no idea you were in this game. I trust I did not offend you by suggesting your discipline was poetry. Anyway, thanks for a welcome note of authority.Bryan Appleyardhttps://www.blogger.com/profile/08276787058430388582noreply@blogger.comtag:blogger.com,1999:blog-23400750.post-1156116030837133622006-08-20T23:20:00.000+00:002006-08-20T23:20:00.000+00:00I was surprised to see this article in the Sunday ...I was surprised to see this article in the Sunday Times because Turok's idea was proposed some years ago, and hasn't excited much general interest since. The idea was originally called the Ekpyrotic universe. See<BR/><BR/>J Khoury, B A Ovrut, P J Steinhardt, N Turok, ?The Ekpyrotic Universe: Colliding Branes and the Origin of the Hot Big Bang?. Phys.Rev. D64: 123522 (2001)<BR/><BR/>The Ekpyrotic Gordon McCabehttps://www.blogger.com/profile/09151162643523937086noreply@blogger.comtag:blogger.com,1999:blog-23400750.post-1156094806740704742006-08-20T17:26:00.000+00:002006-08-20T17:26:00.000+00:00Andrew, thanks for that. You have unearthed a cons...Andrew, thanks for that. You have unearthed a consistency in my thoughts processes that had eluded me. It is all one and Jeffrey and Paris are there.Bryan Appleyardhttps://www.blogger.com/profile/08276787058430388582noreply@blogger.comtag:blogger.com,1999:blog-23400750.post-1156092973656377312006-08-20T16:56:00.000+00:002006-08-20T16:56:00.000+00:00I'm not very au fait with science despite the occa...I'm not very au fait with science despite the occasional attempt to read something relevant. Are they searching for an adequate way of explaining the existence of ....well anything, without recourse to an external force, or in other words that physics desires that the universe be sufficient to bring about its own existence? But as a result they're left with having to make do with a perpetual Anonymousnoreply@blogger.com