Question about Big Bang Theory

[Mazerakham]

Why do we think that the Big Bang contained "all" the matter/energy in the universe? If we imagine the point, the "big bang point" to be some accumulation of mass, what makes us think that it should have "waited" for all the mass in the universe to accumulate in it before exploding?

That's just a thought that occurred to me.

 

[DaveC426913]

Why do we think that the Big Bang contained "all" the matter/energy in the universe? If we imagine the point, the "big bang point" to be some accumulation of mass, what makes us think that it should have "waited" for all the mass in the universe to accumulate in it before exploding?

That's just a thought that occurred to me.

When we reverse the film that is the expansion of the universe, we are able to see that all the matter in the universe came from one very localized place in space and time. We have been able to reverse this film back to one billionth of a second before the BB, and there are no discrepancies worth noting.

 

[bucky1andonly]

Why couldn't there be other such localized areas, billions upon billions of light years away from another bigbang. There could have been billions of bigbangs all over the universe. We just can't see far enough to gather the appropriate information, and we need to do more than just see as well. We have to go there, where ever there is. :P

 

[DaveC426913]

Why couldn't there be other such localized areas, billions upon billions of light years away from another bigbang. There could have been billions of bigbangs all over the universe. We just can't see far enough to gather the appropriate information, and we need to do more than just see as well. We have to go there, where ever there is. :P

1] We base our theories on what we observe. No observation, no theory.

2] A competing theory to what we have needs to explain everything our current theory does at least as well if not better. What does you supposition about matter elsewhere do?

We just can't see far enough to gather the appropriate information, and we need to do more than just see as well. We have to go there, where ever there is. :P

Why?

 

[sardar]

The concept of the Big Bang theory is based on the idea that the universe began as a singularity, an infinitely small and dense point. This singularity contained all the matter and energy that would eventually expand and form the universe as we know it. This is supported by multiple lines of evidence, including the cosmic microwave background radiation, the abundance of light elements, and the expansion of the universe.

It is important to note that the singularity was not a physical point in space, but rather a mathematical concept used to describe the beginning of the universe. Additionally, the Big Bang did not happen in a specific location, but rather everywhere in the universe simultaneously. Therefore, it did not require all the matter in the universe to accumulate at a single point before expanding.

The explosion of the singularity was not a violent explosion like we typically imagine, but rather a rapid expansion of space itself. This expansion was driven by the energy contained within the singularity, which was released as the universe expanded and cooled.

In summary, the concept of the Big Bang containing all the matter and energy in the universe is supported by observational evidence and is not limited by the physical constraints of a single point in space.