where did it come from then? what i mean to say is where did " initial state of high density and temperature" come from? Not saying its wrong but it looks incomplete its vague on certain points which I'm sure can be explained in the future
The big bang theory is very vague, it doesn't explain how the matter was created to cause the big bang you would need energy but where did the energy come from. lets say this universe is a simulation, the universe that created our universe how was that universe created or is their a god but what created the god? in science matter cant be created by nothing it requires energy.