this is definatly a trekkie question...

but how is data captain of the enterprise e when he died in nemesis?

 

In Nemesis he uploaded his memories with B4 (The Prototype) to help it become sentient. After Data died B4 started doing things that Data did. In the end Data's memories took hold and B4 became Data.

 

interesting

but didnt data put it himself when he said "even if B4 had my memories, he would not be me"?

 

Yes, but B4 doesn't remember that.  

 

i'm sure the new Data had to relearn a lot of stuff, and is a little different from the old.... until Nero went back in time, then Nemesis hasn't happened yet, thank you Nero!

 

The end of Nemesis saw B4 singing "Blue Skies" and Jean-Luc walking away smiling as though he knew Data was in there. And the original flow of events in Star Trek (now called the prime continuity) did still happen, the accidental temporal incursion by Nero caused an alternate parallel reality that exists along side the prime one. So, as much as we might wish it otherwise, Nemesis still happened.

 

I agree with that assessment - that a change in the past may not radically change events in the future.

 

B4/Data had to have made one hell of a recovery and/or received upgrades to match the original Data's systems to be trusted to captain the flagship.

 

when Nero went back in time it created another Universe leaving the original universe unchanged.

 

Trek has done this before showing that time travel creates alternate outcomes, particularly in the TNG finale. This would just become another canon Trek verse alongside the existing Prime universe, the TNG finale alternate future verse (with skunk hair data), and everyone's favorite evil goatee verse. (And the novel Shatnerverse.)

The only downside is this whole thing is a massive Fuck You to Romulan fans.

Though it would be interesting if future movies showed time travel to be self correcting ala beast wars causing events to return to normal by TNG. After all Pike still ends up crippled (not as badly though but his condition might be degenerative), Kirk still ends up becoming captain on schedule (only joining late and being rapidly promoted rather than slowly climbing the ranks from a younger age), and there seemed to be hints of a New Vulcan, which just might be quietly named after the original planet.

Actually with Vulcans being an endagnered species it might explain why you rarely see more than one for every other federation vessel in spite of them being a major part of the federation.

But all of that is just speculation. What's really going to be twisted is if Spock opts to warn the Romulans a good century in advance of the impending supernova, causing additional time changes.

 

Yeah, I'd have to agree with that. Even if all of Data's memories eventually surfaced in B4, it'd take some heavy modifications to the prototype android to truely make him Data. Not to mention make sure he'd be safe from any one who'd want to take advantage of his systems like the Remans did.