3500 years before the battle of Yavin? Why are most of the weapons pretty much the same? has technology stagnated for a few thousand years and suddenly start improving after Episode I?
How did technology suddenly start improving after Episode I? I can't think of any advances except older ship designs being abandoned in favor of newer ones, but there's nothing odd about that.
"There is something going on in time and space, and beyond time and space, which, whether we like it or not, spells duty." -Winston Churchill
"For of all sad words of tongue or pen, The saddest are these: 'It might have been!'" -John Whittier
"Apathy is death." -Kreia