What could possibly ever have caused anything to happen in all of eternity, ever?
Logically, the first and only thing that could ever be in all eternity, would HAVE to be a point of authority over every single parameter to follow.
I'm not following your logic. Why must there be a point of authority? Where did that point of authority come from?
By the way, our search for the Higgs Boss on answered the question of where the universe came from. While searching for the "god" particle in the particle accelerator, we discovered that spontaneous explosions of matter and antimatter are popping out of nothing all the time, everywhere. Nothing is needed for those explosions to happen, they just do it on a quantum scale. They quickly revert as matter and antimatter annihilate each other, so we never notice them without specialized powerful instruments.
But this explosion is exactly what the Big Bang was: a spontaneous quantum explosion of matter and antimatter that was bigger than "normal," and just happened to have kept going. Since these things happen on their own, and we have observed them, there is really nothing special about the Big Bang explosion, nor anything special that had to happen for it to exist. And as to the question of how did something come out of nothing, just like the tiny explosions of matter and antimatter that we observe, our Big Bang derived universe was also an explosion of matter and antimatter. So if you were to sum up everything that exists in our entire universe, the sum total of all matter and antimatter cancels each other out, and is also equal to zero/nothing. In other words, our entire universe is just all equal parts positive and equal parts negative, the sum of which is zero, and we just happen to live among the positive stuff in it.