Talk:Weyl curvature hypothesis

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Nice surprise[edit]

What a pleasant surprise to see an article on this topic! MP (talk) 12:43, 28 December 2005 (UTC)[reply]

The hypothesis[edit]

According to a public lecture by Roger Penrose 18 August 2006 at University of British Columbia, Vancouver B.C., the Weyl curvature hypothesis is that the normal derivative of the Weyl curvature of a previous universe is equal to the normal derivative of the Weyl curvature in the succeeding universe even at the moment of the Big Bang. --Ancheta Wis 05:39, 19 August 2006 (UTC)[reply]

I believe that what you're describing is a feature of Penrose's conformal cyclic cosmology model, which (among other things) is an attempt to provide a deeper explanation for the Weyl curvature hypothesis. Penrose did not put forward his full conformal cyclic cosmology model until a few years after the lecture you mention, but the specific statement you bring up is speculation regarding how the Weyl curvature hypothesis, if correct, might have come about. That probably makes it worth mentioning in the article. Indeed, I feel it would be good to include some more complete mention of conformal cyclic cosmology. Perhaps a short section on possible explanations for the Weyl curvature hypothesis should be added?50.174.178.168 (talk) 05:06, 4 June 2015 (UTC)[reply]

The Emperor's New Mind[edit]

There is a long discussion of the Weyl curvature hypothesis in the science-popularization part of Penrose's book The Emperor's New Mind. This would be a good source for the article. — Miguel (talk) 19:58, 25 October 2014 (UTC)[reply]