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"?

8 minutes ago, QuantumT said:

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

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

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?

 

No.
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.