Originally Posted By: Bill S.
Originally Posted By: O
There could actually be a universe next door expanding like us and eventually we will collide.


Does QM make any proposals as to what the nature of the "space" between these universes be?


Exactly whatever our space is made of minus the quantum fields.

I believe in "Evil, Bad, Ungodly fantasy science and maths", so I am undoubtedly wrong to you.