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General Discussion => Science & Nature => Topic started by: sam on December 08, 2010, 04:49

Title: Penrose’s Cyclic Cosmology
Post by: sam on December 08, 2010, 04:49
Quote
Update: Gurzadyan and Penrose have very quickly put up a response to the analysis papers quoted below.

Gurzadyan & Penrose Roger Penrose and his collaborator Vahe Gurzadyan made a splash recently by claiming that there was evidence in the cosmic microwave background for a pre-Big-Bang era in the history of the universe. (Here’s the paper.) The evidence takes the form of correlated circles in the cosmic microwave background anisotropies, as pictured here. They claim that they have found such circles at a level of significance much higher than would be predicted in a conventional scenario, where perturbations were random and uncorrelated on various scales.

http://blogs.discovermagazine.com/cosmicvariance/2010/12/07/penroses-cyclic-cosmology/
Title: Re: Penrose’s Cyclic Cosmology
Post by: Clive on December 08, 2010, 10:29
If true, the new Penrose theory would have been the biggest astronomical sensation of the century.  However, if other scientists are unable to reproduce the results then this is Penrose's Le Verrier moment.  It's a shame because he should have quit while he was known as one of the greatest theoretical physicists of the 20th century.  This will leave a dreadful stain on his obituary. 
Title: Re: Penrose’s Cyclic Cosmology
Post by: Simon on December 08, 2010, 10:30
Will he care?
Title: Re: Penrose’s Cyclic Cosmology
Post by: Clive on December 08, 2010, 11:06
All great people worry about their obituaries.  He will know that he's screwed his up.   :laugh:
Title: Re: Penrose’s Cyclic Cosmology
Post by: sam on December 08, 2010, 13:26
but they are arguing back... and it sounds as if people believe some of what he is saying from the data, just not the larger arching consequences.
Title: Re: Penrose’s Cyclic Cosmology
Post by: Clive on December 08, 2010, 15:27
We will await the outcome with great interest!  It would be awesome if he can prove it.   8-)