According to this article "nothing" can be defined as some electric fields.
I often see scientific articles talking about the possibility of more than one universe and the idea of a literal nothing. Strange because I always thought "nothing" would include a lack of electric fields and that there could only be one all-inclusive set.
If there is more than one of these space/time expansions together in a kind of foam or something, it would mean the universe is bigger than we thought, not that there is more than one universe, right?
What is your definition of "nothing" and "universe"?