Cyclical history as theorized by Spengler and other is a fringe type of historical analysis rejected by historians. And it is actively used as a neo-fascist dog-whistle. That’s not a way to show my moral superiority, it’s what they do.
> Ibn Khaldun, 14th century Muslim scholar from Tunisia
Ascribing any fixed time scale to the cycle is going to be fallacious as it depends on environmental factors.
which historians? And why should we pay any attention to their consensus?
My point is: the dog whistle/modern meme is basically a reference to Spengler and others, because their ideologies align relatively well with the patchwork of neo-fascist ideas. That's what they hint to and promote. That's why I explicitly mentioned Spengler and the 20th century. Lot of other people developed some form of a cyclical history but that's not really relevant here.