I can't help with the physics at all, I'm afraid, but as for writing it, I'm not sure from whose POV you are writing from. If this is Chaos herself (as if Chaos would be female, indeed...) then how she experiences it may be beyond our ability to comprehend. If this is a creation myth in a Book of Creation used by their religion, or a tale told around a campfire, then the kind of thing you've written seems fine to me -- that kind of contradictory now and never idea is one which reads as complex and simple at the same time.
Incidentally, you might be interested in No One's creation myth which he put up in Critiques a while back Critiques: The Ontologia
My comments to him about where and how the story is inserted into the novel stands good for you, too, I think -- my feeling is you have to be very careful how these bits are added to avoid overwhelming the reader in archaic and dense language.