Let me answer. If anybody wants to argue or disagree that's fine.
But I will answer predominantly from what I have seen Remote Viewed. I'm not a Remote Viewer, so if I'm wrong - absolutely fine.
Beginning of the Universe - "In the Beginning there was the Word", It's better translated "The Vibration", even better translated "There was a drop in Vibration or Frequency" to create "Physical Reality".
This Planet came into existance a long time ago. There's a lot of Ancient writings on it.
The edge of the Universe is where possibilities get thin.
The Centre of the Universe is where possibilities are thickest. Perhaps the 'God realm'?
One idea that I have heard espoused is that like Water, there are three natural States in the Universe, 'Physical Reality' like Ice, 'Spiritual' like Water, and 'God' like Steam.
These all exist as the speed of vibrations of Energy. So for example : m = √C from E=mc² which means, Physical Matter vibrates at the frequency of the square root of the speed of light.
That's my very simplistic starter to answer some of the questions. Others can also add their opinions.