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Research suggests Big Bang may have taken place inside a black hole

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Re: Research suggests Big Bang may have taken place inside a black hole

#21
post #20

There are countless versions of this theory out there. Basically, a universe existed, then collapsed down to a single point, and then expanded again (the big bang). Rinse and repeat.

Or a universe expanded inside a black hole and we are holograms on the shell.

Re: Research suggests Big Bang may have taken place inside a black hole

#23
post #16

Isn't time a human invention useful to model the nature? It's literally just a defined interaction as a reference, i.e. the sun rising up and going down which is the rotation of the earth. So IRL there's no time, there's no need to have a beginning or an end. Whatever happened when all the matter was close together isn't the beginning of anything, just a phase.

I'm butchering the mythology, but the Greeks had Cronos and Kranus. One was measurement, and one best explained as cause and effect.

Re: Research suggests Big Bang may have taken place inside a black hole

#25
> The Big Bang is often described as the explosive birth of the universe – a singular moment when space, time and matter sprang into existence.

It is indeed "often described" in the media as such. However, that is _not_ the currently accepted theory. "What if there were no space and time before the Big Bang" is just Stephen Hawking's pet theory.

Re: Research suggests Big Bang may have taken place inside a black hole

#26
post #3

Beginning is an illusion created by our way of perception. Time is neither linear nor real so how can there be a "beginning"?

"Your honor, I could not have possibly shot that person, because yesterday might not have been before today, or at least, there is reasonable doubt that yesterday was before today, according to some physicists on crack. I treat those physicists with high regard personally though, and they have degrees that you don't have, so the court must reasonably conclude their opinions should be entertained."

"Objection, your honor. In the many-worlds interpretation there is a world in which that happened."

Re: Research suggests Big Bang may have taken place inside a black hole

#28
post #16

Isn't time a human invention useful to model the nature? It's literally just a defined interaction as a reference, i.e. the sun rising up and going down which is the rotation of the earth. So IRL there's no time, there's no need to have a beginning or an end. Whatever happened when all the matter was close together isn't the beginning of anything, just a phase.

We have no idea if there is a meaningful beginning or end, other than heat death. But time is real in the sense that there is an arrow of time, due to entropy.

Re: Research suggests Big Bang may have taken place inside a black hole

#29
post #16

Isn't time a human invention useful to model the nature? It's literally just a defined interaction as a reference, i.e. the sun rising up and going down which is the rotation of the earth. So IRL there's no time, there's no need to have a beginning or an end. Whatever happened when all the matter was close together isn't the beginning of anything, just a phase.

Not true. The arrow of entropy has a direction and it's the same as the arrow of time. There's not a good explanation for why though.

Re: Research suggests Big Bang may have taken place inside a black hole

#30

Earlier quoted context omitted.

There is no proof of "nothing " existing. Every observation we take, we see "something".

Than why do we need a beginning if there was always something.

There is as yet no proof that there was nothing before the big bang, it's just a supposition. The hot dense universe definitely happened but whether that was the "beginning" is essentially unknown.
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