I said the clock only goes one way, which is the absolute truth.
Tech won't disappear, we aren't going to forget germ theory, or quantum/astro-physics, forget liberals ideas, or go back to being serfs to anyone.
The direction of civilzation can be directed to many paths, but time cannot be rewound.
Perhaps you are unaware of these things called 'The Bronze Age Collapse' and 'The Fall of the Roman Empire.' There's a reason that the period immediately after the fall of the Roman Empire is referred to as the 'Dark Ages' in Europe.
It is
absolutely possible to have both civilization and technology levels regress. Given how sophisticated and interdependent modern economies are, it is entirely possible for war or collapse of social order to cause technology and the means for sustaining it to fail as well. Just look at what happened to Venezuela.
Will that happen again on a world-wide scale? I honestly do not know, but it
has happened before, and the idea that it can't is thoroughly historically disproven.
Further, plenty of nations have regressed into serfdom. Again, look at Venezuela. Many nations have gone from serfdom/nearly so, to
worse; look at the USSR, China, North Korea, etc, etc.
Frankly, you don't seem to be aware of what much of the world outside North America, Europe, and Commonwealth nations tends to be like.
Also, regarding Original Sin:
The interpretation of 'Original Sin' that is bandied about by Christianity's critics, is generally the hard-line Calvinist interpretation that paints Christianity in the worst light. That interpretation is the 'Adam sinned, so all of humanity is now damned to hell.' This is not a correct interpretation, and it isn't even one that is held by the majority of Christians. A lot of 'christians' don't even really know what the concept actually is.
The
actual meaning of Original Sin, is (using simple language rather than what you'd hear at a bible college) that once sin entered into the world through Adam and Eve's actions, all were then
able to sin easily. To put it one way, before eating the forbidden fruit, there was only
one moral law. 'Don't eat the forbidden fruit.' After that, the full breadth of the moral law as we know it now became necessary.
'Don't steal. Don't murder. Don't rape. Don't be a jerk.'
Bluntly put, you are trying to tar all of Christianity, with an interpretation of a doctrine that is flatly heretical even within Christianity. Sure, a disturbingly large number of christians happen to believe that heresy, but like most people inhabiting the anti-Christian reactionary cultural space, you seem to have fallen into the habit of taking Christianity's critics at their word immediately, and not checking to see what Christianity's champions have to say in response. I say 'seem' because your attitude appears to fit the pattern, but I don't know for sure.