Around 6,000 years ago, the first decision was made, creating a point of duality, which resulted in the instantaneous expansion of our universe. Since then, an infinite number of universes have popped into existence. It’s a real mess.
It never did. The beginning is just a useful language construction. Thinking about how Universe begin is, on the contrary, NOT useful. But surely a great subject for centuries of narratives. Narratives ARE useful. Paradoxes from the beginning.