Right, it doesn't prove how the universe originated.
It proves that there had to be a spacetime boundary condition in the past, but it makes no statement on how everything originated.
However you slice it, there seems to have been an origin point.
Nothing is literally nothing. No time, no energy, no space, no dimension, no physical laws.
The bottom line is from the perspective of the atheist and the physical materialist, a lawfully ordered universe blinked into existence from inanimate nothingness and random chance.
That is as big a miracle as anything in the New Testament.
This is an article by Aleksandr Valenkin, one of the authors of the theorem
The answer to the question, “Did the universe have a beginning?” is, “It probably did.” We have no viable models of an eternal universe. The BGV theorem gives us reason to believe that such models simply cannot be constructed.
When physicists or theologians ask me about the BGV theorem, I am happy to oblige. But my own view is that the theorem does not tell us anything about the existence of God. A deep mystery remains. The laws of physics that describe the quantum creation of the universe also describe its evolution. This seems to suggest that they have some independent existence.
What exactly this means, we don’t know.
- Aleksandr Valenkin
Despite the perplexing questions associated with the universe having a beginning, the BGV theorem shows it must have had one. Alexander Vilenkin describes the theory of quantum creation, and why it means that the universe both could have a beginning and be uncaused.
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