On 3/18/2014 3:13 AM, Chris de Morsella wrote:
*From:*[email protected] [mailto:[email protected]] *On
Behalf Of *meekerdb
*Sent:* Monday, March 17, 2014 6:16 PM
*To:* [email protected]
*Subject:* Re: First direct evidence of cosmic inflation
The interesting question is which cosmogony models are ruled out by this. I think it
rules out the d-brane collision models and maybe other string based models.
Interesting. Could you be more specific why... is it because of the nature of the
signature of these ripples in spacetime.
Chris
The brane-collision model was invented to explain why there wasn't b-mode polarization in
the CMB, in case there wasn't. It didn't require the inflationary period. But I'm told
by my more erudite friend Lawrence Crowell that there are versions of the ekpyrotic model
that will have inflationary bubbles and b-mode polarization - so I guess only the simpler
collision model is ruled out.
Brent
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