What is the Universe expanding into..

Do you think there was anything before the big bang?

  • I don't think there was anything before the Big Bang

    Votes: 56 12.5%

  • I think something existed before the Big Bang

    Votes: 200 44.7%

  • I don't think the big bang happened

    Votes: 54 12.1%

  • I think the universe is part of a mutiverse

    Votes: 201 45.0%
  • Total voters
    447
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#10,027
TNT said:
...given how little we (humanity) actually know... 😌
Click to expand...

We have done well to come up with the Big Bang Theory which explains the the origin of matter, the large scale structure of the universe, universal expansion and the existence of the Cosmic Microwave Background.

What we know little about is what governed the universe immediately after the Big Bang. This is the area which is rife for speculation.
 
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#10,030
Galu said:
We have done well to come up with the Big Bang Theory which explains the the origin of matter, the large scale structure of the universe, universal expansion and the existence of the Cosmic Microwave Background.

What we know little about is what governed the universe prior to the Big Bang. This is the area which is rife for speculation.
Click to expand...

But, BUT!

You presuppose that time existed before the Big Bang. What if time did NOT exist then?

After all, space-time is intercorrelated in our "universe". Perhaps there are other "verses" that have entirely different ideas and manifestations of "time".

Maybe be there are other "universes" for which:

"What time is it? What time is it?"
"There is NO time in space"

Is a true fact.

With that in mind, you can not posit the question about "before the Big Bang"... because by definition, our space-time did not exist then.
 
#10,034
Galu said:
The laws of physics could not have existed then, so speculate as ye may!
Click to expand...

Shoot... all those late night study sessions of my youth... wasted.

I could have taken Political "Science"... an easy A++ while I got drunk and laid all the time... could have became a big shot lawyer.....

But no.... I had to work on those Hermitian matrices and the curl of some crazy field. Only to find out that none of that likely meant anything before the Big Bang.
 
#10,035
P.S. tonyEE and TNT, I've changed prior to the Big Bang to immediately after the Big Bang - 10^-43 to 10^-11 seconds after!

Those earliest times of the universe are the ones subject to speculation involving the Singularity Epoch, the Inflation Epoch, and the Cooling Epoch.
 
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#10,037
There's no doubt that Webb will see deeper back in time to the Big Bang than any previous instrument.

On Friday, NASA said the first full colour scientific images from Webb will include unprecedented views of distant galaxies, bright nebulae, and a faraway giant gas planet.

To be precise: Stephen's Quintet galaxy, the Carina and Southern Ring nebulae and gas giant planet WASP-96 b.

Also to be expected is an image of extremely faint and distant galaxies obtained through the gravitational lensing of foreground galaxy clusters.

https://phys.org/news/2022-07-nasa-...right nebulae, and a faraway giant gas planet.
 
#10,038
Are you saying that according to Hoyle, Hawking was wrong?
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