Duke Leto
Deleted
The short version of that would be "Death to all Fucking -isms!".
Yeah. Go team. Right direction. Boo hiss. Really bad inferences. Philosophical cultural evolution proposals, unsupported punctuated equilibrium. Go back and review Kurt Lewin. He was trying to connect to physics too. I'm more inclined to finding clues for history in comparative neuroscience models just as medicine is finding cheap evidence basis in rodents and monkey models.
Fellow iconoclast!
The idea is a lot simpler than you're making it out to be. My idea is we can't talk about the big historical "-isms" as meaningful things that last more than a generation or so, "nationalism" in 19th century Eastern Europe was quite a different animal from 15th century Western Europe or 19th century America, so calling them all "nationalism" muddies more than it clarifies; and that the economy has to be healthy and stable enough to pay for existing social structures. If the economy gets messed up, social structures will be forced to change, although the selection criteria will be based on "what makes sense to a majority of people (with power) at the time", and therefore highly unstable. Society doesn't change when things are going OK economically.
If anything, this is taking a sledgehammer to 19th century historical scientist(-ist?)s who worked wrongly with the framework of Hegelian Idealism and tried to make history into a copy of Linnaeus's Biology, only the taxonomy wasn't just non-cladistic, it was Aristotelian.