Ryujin
Legend
I don't know that you've thought about time more than most nerds. Do different decisions result in different timelines, resulting in near infinite possibilities? Do timelines only diverge for major events? Is there just one elastic timeline that, if changed, will eventually find its way back to the original course? Maybe it's something of all three?We must define timelines differently then. To me, any actual change results in a different timeline. Timeline 1: Eugenics Wars in 1992-1996. Timeline 2: Eugenics Wars in 2040s(?). When they pull the "it was meant to be this way all along" card like they do in some episodes, like the DS9 episode "Past Tense" where Sisko and Bashir turn out to be the cause of the "Bell Riots," an historical event to Sisko and Bashir. When they look it up, they see a picture of Sisko as Bell. That works infinitely better than whatever "time asserts itself" explanation was given. But I'm a huge fan of Doctor Who so I probably think about time travel way more than most nerds.
It would be so much easier if they just accepted that it is an alt-history that leads to an alt-future. Every 20-30 years they'll just need to update the timeline so things that the show says happened in years the real world has already passed are now some little distance in the future.