Could there be a collapse of a civilization?
It sounds slightly ridiculous to even type the words. Everyone knows how pointless it is to sit around and wait for the collapse. Liberals also know that civilization only progresses and history goes straight forward.
Civilization has collapsed before though. In the span of a generation from 370 to 430 AD, we know from the archaeological record that civilization collapsed in Roman Britain. Cities and a monetary economy disappeared there in St. Augustine’s lifetime. The collapse was so severe that it set civilization back about 500 years. Technology became less sophisticated than it had been in pre-Roman Britain in both British and English areas. Roman Londinium had a population of about 60,000 people at its height and it took a millennium to reach that level again.
Note: I’m not advocating “waiting for the collapse” as a strategy. I am just currently studying Roman Britain, Anglo-Saxon England and Viking Era England.