I posted this as a reply to one of the threads but I figured I would post a new thread to get more people's attention.
This is completely my take on the matter, but I have a theory which could explain how BOTH realities could exist at the same time....
It is reasonable to assume the black hole in the prime universe NEVER dissipates after Nero and Spock go through it (as seen in Countdown). When the black hole was formed it created a "gateway" from the present to the past. Logically, as long as the black hole remains intact then both realities will exist along side each other UNTIL the black hole dissipates. At that point, the prime universe would be "overwritten" with the new timeline seen in the movie. Since black holes are not known to just disappear, then you could reasonably assume the prime universe will exist forever and the black hole simply becomes a permanent portal to an alternate reality.
I don't know if this makes sense to any of you, but IMO it's the best explanation to give according to the theory that there is only one timeline. Something to think about...
This is completely my take on the matter, but I have a theory which could explain how BOTH realities could exist at the same time....
It is reasonable to assume the black hole in the prime universe NEVER dissipates after Nero and Spock go through it (as seen in Countdown). When the black hole was formed it created a "gateway" from the present to the past. Logically, as long as the black hole remains intact then both realities will exist along side each other UNTIL the black hole dissipates. At that point, the prime universe would be "overwritten" with the new timeline seen in the movie. Since black holes are not known to just disappear, then you could reasonably assume the prime universe will exist forever and the black hole simply becomes a permanent portal to an alternate reality.
I don't know if this makes sense to any of you, but IMO it's the best explanation to give according to the theory that there is only one timeline. Something to think about...