In terms of if god exist or not, I'm just gonna say this.
Each and every human, Is dumb really, because humans never look into the past and not only do humans in general rarely ever learn from their ancestors mistakes they also forget what happened as well. For instance, What if I told you there was actually many species. Yes species. Not race, Of humans at a point in time? They was called Neanderthals for the most well known ones. Also there is Java man and so on.

When you look back in history, Deep, Deep history. You'll find things humans forgotten. We even forget things in our lifetime even. If a existence of a God was true. We are way too past that time too know about it.and if no Bible was ever made then chances are no human would even know of it today now would we? Saying we could is like saying we would know of the exact details of a conversation word for word one of our parents had with their parents when they was a kid. They probably don't remember word for word and neither could we.