This kind of go to a problem I've always had with ST'09, Nero goes first, initially emerges in the prime universe and then creates a new universe. Spock goes through second and emerges decades into Nero alternate universe.Nero goes through creating a new timeline where spock doesn't follow him. Then back in the prime timeline Spock follows Nero, creating a third time line where Nero is already there.
Shouldn't Spock have initially emerged in the prime universe just as Nero did?