system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] Why hasn't there been any new technology in the last 5000+ years?

I'm a Padawan at the Jedi Temple on Coruscant and I've been studying the life of Darth Revan, who lived almost 5,000 years ago. Darth Revan used the same kind of lightsaber as me, flew in the same kind of ship as me, and had the same kind of astromech droid as me? Why has there been no noticeable technological advancements in the last five millennia?
gpt
There is plenty of development. Just look at how the battle cruisers from the prequel movies grew into the massive star destroyers that supported Tarkin's reign of terror in the original trilogy. Not to mention the never before seen horror of the death star.

The Star Wars galaxy is big, very very big. The ewoks live in a virtual stone age while the Kaminoans live in floating cities where they practice their mastery over clone technology. Moisture farmers are scraping by on Tatooine while Coruscant is a city that covers a planet.

There is technology and there is progress but it's happening asynchronously across a massive galaxy. Aside from that a lot of technology is already so advanced that it'll serve fine somewhere in the galaxy. Ships that are ancient and obsolete by the standards of the imperial navy or commercial trading corporations are unfathomable miracles on another world and perfectly useful ships on yet another.

A lot of the stuff in star wars is also very durable. Droids are effectively immortal if they don't get destroyed so it's not odd to see an R2D2 unit next to an older R2 unit developed a thousand years ago, even if you get sick of your R2 unit, somewhere in the galaxy it's cutting edge. Luke's x-wing was able to fly away into space just fine after crashing into a planet and spending weeks in a swamp.

And don't forget that light sabers have always been referred to as ancient traditional weapons. Han actually scoffs at the silly things and proclaims he'd rather have a good blaster.