Re: Penrose's new ideas on the big bang

>
> If all that exists is free isotropic blackbody radiation then there is
> no physical possibility of defining a rest frame, and more basically,
> no way of normalizing the metric, something that is tacitly assumed to
> be always possible (fixed length scale in Riemannian geometry). So the
> metrical world goes over asymptotically into a conformally invariant
> one. So then perhaps he assumes the "next big bang" is the spontaneous
> breaking of this conformal symmetry by the appearence of new matter.
> You can see how this is qualitatively like the big bang. Very clever
> idea.
>
> -drl

I didn't get it completely, mostly because there are no equations out there
(partly, because my english is not good enough ;-), but I think I got the
idea...

Thanks for the post, helped me a lot to understand the video.

Greetings,

Jakob

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