Penrose's cyclic universe - question

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Penrose's cyclic universe theory posits that all matter eventually disappears due to Hawking radiation, leading to a re-initialization of space and the emergence of a new big bang. The discussion raises questions about the sequential nature of these aeons, arguing that if time is dependent on mass, the absence of mass should allow for parallel aeons instead. Critics highlight flaws in Penrose's statistical evidence regarding cosmic microwave background (CMB) correlations, suggesting it undermines the credibility of his theory. While the sequential nature of aeons is a key aspect of his model, the possibility of parallel aeons remains a topic of speculation. Overall, the validity of Penrose's arguments and the implications of his theory are debated among participants.
hammock
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I've just watched the lecture of Penrose on his cyclic universe theory here:



I fact I understood that he claims that any kind of matter dissapears in a couple of Googol years due to Hawking radition; so there is no matter left at the end, which leads to a reduced degree of freedom in terms of the 2nd law of thermodynamics which then "re-initializes" space (or so ... my term) and leads to another big bang.

What I do not understand is why he claims his aeons being sequential. In fact, time somehow is a product of mass movement in space and if there is no mass, there is no time.

So then, why can't these aeons exist parallel to ours?
 
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I don't think most physicists take this idea seriously. It doesn't help that he really shot himself in the foot with some incredibly shoddy statistics when he and Gurzadyan tried to show that the CMB had some evidence of of this idea (in essence, they showed that the temperatures on different places on the sky are correlated, the problem being that the existence of those correlations is well-known and part of the fundamental physics of the CMB, betraying a complete lack of understanding of the most basic concepts of CMB science).

While it's true that it's possible to support a good idea with bad arguments, the incredibly bad arguments they've used to promote this idea put into question the rest of their reasoning.
 
hammock said:
What I do not understand is why he claims his aeons being sequential.

They are sequential in this particular model, whether that is how the universe is, is a separate question.

So then, why can't these aeons exist parallel to ours?

May be they can, but that would be a different model.
 
I always thought it was odd that we know dark energy expands our universe, and that we know it has been increasing over time, yet no one ever expressed a "true" size of the universe (not "observable" universe, the ENTIRE universe) by just reversing the process of expansion based on our understanding of its rate through history, to the point where everything would've been in an extremely small region. The more I've looked into it recently, I've come to find that it is due to that "inflation"...

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