Love the reference to Hari Seldon, the famed psychohistorian from Isaac Asimov's Foundation trilogy. If you haven't read the Foundation trilogy, get a copy to enjoy during lockdown, it is fantastic.
Hari Seldon wasn't real. Psychohistory isn't real. I find the response to Turchin's work from the STEM and Humanities communities fascinating. STEM people drool. Here is this scientist who has systematized human civilization! Humanities people roll their eyes so hard they fall out of their head after encountering mountains of basic errors in Turchin's analysis.
His work is not good.
It was written in the early 1950's. Did prepper culture exist then to the same extent as it does today?