I don't really count the fall of the Roman empire as scientific regress. And even if it does count, that's before the scientific method was well established, so there every reason to think that institutions would fail at preserving knowledge.
Regardless, possible constraints created by "moral facts" didn't go away just because any particular government or society fell. The sack of Rome didn't (or at least shouldn't) cause farmers in the middle of nowhere to change their beliefs about the moral correctness of beating their slaves in particular circumstances. Changing circumstances != changing moral beliefs.
I don't really count the fall of the Roman empire as scientific regress.
I didn't talk about the fall of Rome but the decline of Roman civilization for a reason, it was a process that took centuries. Before it people could build things like the Antikythera mechanism afterwards they couldn't for what seems to be at least a thousand years. Before it literacy was more widespread than afterwards. Even if we didn't lose any scientific knowledge in the process, something I doubt because of the large number of lost works we know existed from references in the ...
Related to: Voting is like donating thousands of dollars to charity, Does My Vote Matter?
And voting adds legitimacy to it.
Thank you.
#annoyedbymotivatedcognition