Humanity lives in endless cycles. I believe we're experiencing a collision between a few shorter cycles and longer cycles. All at the same time.

1. a sort of 80 year forth turning kind of cycle (WWII was the end of one of these): https://en.wikipedia.org/wiki/The_Fourth_Turning

2. a larger super cycle of anacyclosis in the West:

https://anacyclosis.info/ https://en.wikipedia.org/wiki/Anacyclosis

3. a ~250 year cycle of empires rising and falling (US):

https://www.goodreads.com/en/book/show/6177860-the-fate-of-e... https://www.goodreads.com/book/show/52962238-principles-for-...

Now I don't think any of these theories perfectly map to the world. It's not black and white; there are shades of gray. The real world just isn't like that. But it's clear to me there are these shorter and longer cycles and we're about to wrap up several of these and a perfect storm is forming.