Set Harth wrote:
The Alternate Timeline in an Alternate Universe Theory is wholly inconsistent with all previous temporal events.
How many of those involved red matter?
aaaaaand we have a winner.
From a story point of view it's a big honkin' McGuffin, but it works as an excellent way to explain why this is different than every other time travel instance we've seen in Trek so far.
And "Yesterday's Enterprise"
Conclusion: OP, like many "fans" out there, slept through the whole "alternate reality" conversation in the film. Too talky for modern audiences, I suppose...