Axiomatic Set Theory is taught starting with the empty set as an axiom and along with a small number of additional axioms, and from that you can build the integers and rationals and real numbers as well as an impressive hierarchy of different infinities. And one thing that's proved is there is no largest infinity, no set that contains all sets. There isn't an Everything set that's consistent with the Peano axioms.
However, you could build the entire system starting with the Everything set and similarly modify all the axioms to be analagously subtractive rather than additive, deriving in some sense every inverse theorem, including that there is no empty set, no Nothing.
When you do this you immediately at working with insane objects and intuition fails miserably in a way that building the other way doesn't.
This certainly fits with the idea that the universe is an attempted "ordering" bubble in a liquid of everything
That the default or base state of existence may not be nothing, not "not even nothing", but rather Everything. ...
Instead of viewing the origin of all reality/creation as things being added to a canvas of blackness/emptiness/voidness, rather consider that "Existence" may be a subtractive process: akin to holes being poked into a canvas of white, or bubbles in a boiling liquid.
(I mean even before the Big Bang, or the classic "Who Created God"/Prime Mover/First Cause question – humans are given to assuming that the start of anything must be Zero or Nothingness, that the end of everything is Oblivion, and that may not be the case.)
Our existence is a "filter", our perceptions being a very limited subset of everything that's around us, of select wavelengths and frequencies and etc. This entire universe could just be a transient bubble inside a flood of Everythingness. [0]
[0] https://en.wikipedia.org/wiki/False_vacuum#Existential_threa...