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Re: What is Twistor Theory? | Roger Penrose AND What came before Big Bang? Why he changed his mind.

By: De_Composed in GRITZ | Recommend this post (0)
Sun, 08 Jun 25 6:18 AM | 7 view(s)
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Msg. 09338 of 09339
(This msg. is a reply to 09334 by Zimbler0)

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Zimbler0:

Re: “Riddle me this . . How can one go from a 'point in space' with no matter to this 'Big Bang' vomiting all manner of matter components - enough to make a Universe worth of matter . . . ? ? ?”
You should watch the videos fizzy posted. They cover this better than I can.

Penrose believes that before the Big Bang, the universe was in a state of thermal equilibrium. Consequently, things we take for granted did not exist. One of those is the concept of SIZE. If there is no size, then your 'point in space' reference ceases to be an issue.

Ironically, in the distant future when all matter 'evaporates,' the universe will return to a state of thermal equilibrium, and the very, very big universe will be no different from the very, very small pre-universe that spawned the Big Bang.. That sets the stage for a repeat performance... but maybe not an EXACT repeat.











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The above is a reply to the following message:
Re: What is Twistor Theory? | Roger Penrose AND What came before Big Bang? Why he changed his mind.
By: Zimbler0
in GRITZ
Sun, 08 Jun 25 3:59 AM
Msg. 09334 of 09339

Graviton >
In theories of quantum gravity, the graviton is the hypothetical elementary particle that mediates the force of gravitational interaction. There is no complete quantum field theory of gravitons due to an outstanding mathematical problem with renormalization in general relativity. In string theory, believed by some to be a consistent theory of quantum gravity, the graviton is a massless state of a fundamental string.


Decomposed > Before 10^-43rd of a second, there were no residual gravitons. It was still too hot. So why does Penrose talk about the effect of gravity on the pre-Big Bang universe?


So . . . .
A Graviton is a 'hypothetical elementary particle' . . . Suggesting that it might not even exist.

And we got one school of thought regarding pre-Big Bang Gravity and another that there could be no gravity because there were no gravitons . . .

Riddle me this . . How can one go from a 'point in space' with no matter to this 'Big Bang' vomiting all manner of matter components - enough to make a Universe worth of matter . . . ? ? ?

Zim.


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