500 years would put us back to 1500ish, I can’t see that, steam technology and electric motors/turbines are simply doable (and where done) with not much technol

500 years would put us back to 1500ish, I can’t see that, steam technology and electric motors/turbines are simply doable (and where done) with not much technology to boot strap from, hand tools made machines which made specialised machines which repeated for generations but the first step comes back to steam and electrification. It’s not like every book in every library would or could disappear.