**Not if space-time was created at the big bang.
How is that logically necessary?
In fact, my understanding of the Big Bang model is that by definition, it means that space-time violently expanded from a primordial singularity.
So you're basically saying that if there was a Big Bang, it wasn't caused.
How do we know that?
I don't believe we do, scientifically, nor do we know that it was caused... scientifically.
