There's something just horribly WRONG with the Star Wars universe, when you start taking into account all this stuff. 25,000 years, and the universe (or at least the part we've seen) is completely stagnant. From the farthest past to the future, what's different? Other than the names of the people, not much. If we were talking about a couple hundred years here or there, sure, maybe it was just a slow patch, but to go that long with NO technological change? Yikes!
Blasters, hyperspace, lightsabers, speeders. Realistically, only thing that ever gets worked on that's new is that every now and then, someone gets it into their head to build a doomsday device. Even then, the oldest one and newest one would be about evenly matched...
Hmm, I never really thought about it like that before, but you're totally right. Compare and contrast with Star Trek, where humans go from post-apocalytic scavengers totally unaware of any other life in the universe, to guardians of space and time
, all within a single millennia.
I think this stems from that one crucial narrative difference between Wars and Trek: one is fantasy, which just happens to include spaceships; the other is science fiction, though no less fantastical in its approach.
Fantasy universes have a way of existing inside a bubble, perhaps by design. After all, if all those fantasy societies started advancing past swords 'n' sorcery and towards industrialization or whathaveyou, a lot of those classic genre tropes become largely meaningless.
Star Wars is actually kind of remarkable in that sense; it's one major fictional universe that actually (mostly) succeeds in blurring the lines. With that in mind, thinking too much about those 25,000 years of arrested development breaks the illusion somewhat.
I'd be interested to know if there was ever an explanation for that in the fiction.