I'll use the example of the United States, which I have studied from inside out... over the past 20 years, and I will illustrate how these few forces… - Peter Turchin

In 2010... Nature asked specialists... to look ten years into the future, and I made this case... judging from the pattern of US history, we were due for another sharp instability spike by the early 2020s. ...The book is my best attempt to explain this model... I make no claims of radical originality.

So the forecast seems to have been quite good. The question is "What was it based on?" It was not... a prophecy, it was a scientific prediction because there is a specific mechanism on which it was based. ...[T]he forecast was a scientific prediction in the sense that I wanted to stick my neck out [and] make an out-of-sample prediction to see whether the mechanisms that have been identified by our theory... actually are working in the way that we thought...

...[A]s a result ...the new elites, let's call them the elite aspirants... their numbers... begin to be so large that there is not enough power positions in... politics or in economics [e.g., corporations]... That's fixed, and as the numbers of elite aspirants vying for these positions increase, then first... the result... is intraelite competition, and secondly... the numbers of frustrated elite aspirants who are denied access to these positions begins to explode.