USS Excelsior wrote:
Do these universes get created, or they always existed. If it was created then the Narada's appearance created a copy of an entire universe and a copy of everyone in it.
So the NuUniverse has no past and didn't exist, therefore no appearances by future visits or anyone else.
I may be wrong, but I don't think anything is copied. It's the same matter, just in a different quantum state. Like those little holograms on credit cards and DVD boxes - same sticker, but if you look at it from a different angle it's a different picture.