How would you survive and exist in a place without matter? Then if you did find a way how could you survive the big bang assuming there really was one? Nice thought though.
In the same way the place without matter exists.
It would indeed be on a different level.
I have thought much on your theory of time in the same aspects.
That time is a human made concept and it all exists at once.
I've had the same type of experiences you spoke of with the old lady 'ghost.'
I clearly saw an old lady in a long dress apparition in a bedroom of a rented house.
My parents and I all heard footsteps in the house at times. Mom was pulled halfway off the bed by the feet will resting in that bedroom.
Frosty ice was on the walls once with the smell of lillacs and it wasn't even cold.
When we moved I asked the Landlord if someone had died in that house.
They knew the story and answered "yes, in the front bedroom."
My mother grew up in the hills of southern Missouri in the heart of a civil war area. Her and her sister often heard the sound of like a metal ball dragging across the front porch and twice saw what looked like a black metal ball bouncing on the bed.
Fast forward many years later, the house was demolished, woods grown up in the area, she wanted to take a trek up the hill to the old home place one last time. I had never been there, but, walking up the hill through the trees, I caught quick visions of Confederate soldiers all around with their rifles.
Where the old house had once stood, the ground was still open with what looked like the imprint of where it was.
Yet everything else around it was a grown forest.
Yes, your theory is something I have entertained myself.
Add the infinite multiverses and we don't know diddley.
At least our physical brain doesn't compared to what is out there. Maybe what we call consciousness or spirit?
Who knows? I won't say the Shadow knows.
Oh, well, I just did!