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Renegade
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Registered: May 2001
Location: Prague, Czech Republic
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Eh, Penrose is prone to some pretty outlandish thinking sometimes so I wouldn't take this too seriously until his results are independently verified. It's telling that he released the results over the internet and not through a peer-reviewed publication.
Also, the early reactions aren't too flattering:
| quote: | The contrast looks superficially impressive, but there’s much less to it than meets the eye.
[...]
The comparison of WMAP single-channel data with simple Gaussian simulations is... deeply flawed and the significance level quoted for the result is certainly meaningless.
[...]
Having not looked looked at this in detail myself I’m not going to say that the authors’ conclusions are necessarily false, but I would be very surprised if an effect this large was real given the strenuous efforts so many people have made to probe the detailed statistics of the WMAP data; see, e.g., various items in my blog category on cosmic anomalies. Cosmologists have been wrong before, of course, but then so have even eminent physicists like Roger Penrose…
Another point that I’m not sure about at all is even if the rings of low variance are real – which I doubt – do they really provide evidence of a cyclic universe? It doesn’t seem obvious to me that the model Penrose advocates would actually produce a CMB sky that had such properties anyway.
Above all, I stress that this paper has not been subjected to proper peer review. If I were the referee I’d demand a much higher level of rigour in the analysis before I would allow it to be published in a scientific journal. Until the analysis is done satisfactorily, I suggest that serious students of cosmology shouldn’t get too excited by this result. |
http://telescoper.wordpress.com/201...yclic-universe/
And a more technical article:
http://motls.blogspot.com/2010/11/w...adyan-have.html
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http://eschatonnow.blogspot.com/
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Nov-30-2010 11:38
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saluyamo
Supreme tranceaddict
Registered: Jul 2007
Location: Newcastle, Australia
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| quote: | | They say that this means that this means that the universe cycles through aeons dominated by big bangs and supermassive black hole collisions. |
How can black holes collide if the space inbetween them is expanding faster than light?
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Nov-30-2010 12:21
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netroM
42

Registered: Jan 2002
Location: Trondheim
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Nov-30-2010 13:43
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