We have not got to that level of understanding yet
What caused the big Bang ?
What was there before the big bang?
What gives particles mass?
Why are we here?
What is the purpose?
Welcome to philosophy lol.
Science can't take you there :p *yet*
What caused the first thing to interact with the second thing to create all this.
Nobody knows. Really if it was all a natural process , we shouldn't be here .
All those billions if not trillions years of cause and effect brought us to here , to tpe out the question of wtf happened back in the day ?
also begs the question if there is a god , what created him.
Untill we can send a probe to the "edge" of the universe, we can only speculate with some whacky theories . lol
it just did , doesnt cut it anymore.
Lets just say we don't know and can't even begin to put together a plausable picture. But im sure one day the curtains will open up in space , and
lights come on , We all be like "ta da" and say oh thats how !! lol