I had a discussion on FR with someone just the other day on that exact subject. Reading a book right now about Atilla the Hun, and previously Gibbon’s The Decline and Fall of the Roman Empire”, one cannot avoid the frightening parallels.
Well, unless one is too stupid to see them, which is what most Romans were doing right up to the day their enemies came knocking at their front door. They were pretending life was going to go on like it had, forever.
Kind of like us.