nothing can be said about a "universe" where nothing exists, so why even discuss it?
Why are there stars in the sky?
Nothing could be said about stars in the sky if there were no stars in the sky, so why even discuss it?
etc ad infinitum
Why are there stars in the sky?
Nothing could be said about stars in the sky if there were no stars in the sky, so why even discuss it?
etc ad infinitum
But the phrase "something exists" is tautologically true, while the phrase "nothing exists" is a logical contradiction (since the phrase itself and the speaker and the listener must exist). So it's logically impossible for the whole universe not to exist, as long as we can have this conversation or even thought. It's like discussing why 1+1=2 and not 0.