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Big bang expansion (split from Time is a bubble)


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On 12/26/2020 at 3:43 PM, Ghideon said:

That seems to be a common misunderstand of the Big Bang model. There was no point in space that Big Bang "happened" ,Big Bang is an event that took place everywhere. 

Isn't there a location in the universe, that everything is moving away from? Sort of an expansion "ground zero"?

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21 minutes ago, Phi for All said:

Expansion happened EVERYWHERE, all at once. No center, nothing to expand into.

20 minutes ago, Ghideon said:

As far as I know, according to accepted models: On large scales every location will be a center of expansion. All observers will observe distant objects mode away from them. 

Yes, I know. Like the surface of a balloon. But once that balloon was small. Once everything was located in a singularity.
If you look at this simulation of our universe, there is a place in the middle, where the distance to the furthest away stars is equally long in all directions. Right?


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That balloon is a two dimensional representation of our universe, for ease of visualization.
Our universe is, in effect, the SURFACE of that balloon ( reduced to just 2 dimensions ).

And since the curvature of the universe is intrinsic, there is NO inside, and NO outside.

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