The black-hole big-bang theory hypothesized by Smolin and derived by
Poplawski is also ruled out as it does not have a cosmic inflation phase.
Richard


On Tue, Mar 18, 2014 at 8:25 AM, meekerdb <[email protected]> wrote:

>  On 3/18/2014 3:13 AM, Chris de Morsella wrote:
>
>
>
>
>
> *From:* [email protected] [
> mailto:[email protected] <[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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