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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)
Mon, 09 Jun 25 10:14 PM | 17 view(s)
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Msg. 09462 of 09670
(This msg. is a reply to 09459 by Zimbler0)

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Zimbler0:

Re: “You got this big old universe . . and are trying to shrink it down to a point . . What's making it shrink?”
I gave you a hypothetical. IF the universe were to shrink substantially - for whatever reason - God, Gravity, the Honey I Shrunk The Kids gadget, whatever - yet still had its contents including its energy, it would get hot. Shrink it small enough and it would get REALLY hot.

But don't worry. I don't think anything will ever shrink the universe. Certainly not gravity. But something MIGHT make its size be of no importance one day.

Here's a fun thought experiment for you. If you're in your car zipping down the highway and the highway suddenly disappears... then the earth disappears... then all the planets and stars and, well, EVERYTHING disappears... so that it's just you and your car. There is nothing else. And the universe is, as you suppose, infinite. So there's not even an "edge" to one day approach. Are you still moving?






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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
Mon, 09 Jun 25 9:56 PM
Msg. 09459 of 09670

Decomposed > From energy. The universe has a low but non-trivial background temperature due to energy. Make the universe's volume very small and it gets an enormously high temperature.


So . . What's outside the box?

You got this big old universe . . and are trying to shrink it down to a point . . What's making it shrink?

Zim.


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