SDT is a general theory that guides our understanding of political violence dynamics and social breakdown in all large-scale state-level societies. - Peter Turchin

[E]ssentially the effect of increasing the number of wealth holders is translated into increased competition for political positions.

[T]he problem is that as we get greater numbers of these surplus elites... some of them turn into... counter-elites... the individuals who are willing to challenge... the reigning regime, and in history often... by violent means, and in fact this is happening in the United States... they're willing to break the rules of the game.

I claim that ... gives us a very good theoretical framework within which we can look at many different seemingly disparate trends in the United States... they suddenly start making sense... [D]eaths of despair ...I would argue that the opioid crisis is one of the manifestations of the immiseration, and in fact... go to Case and Deaton original book (project) on deaths of despair. They make this argument very eloquently. They give a lot of data, much better than I can do, so [the] opioid crisis is part of the bundle of reasons why immiserated population (people)... results in large swaths of [the] population who are falling... and many of them take the way out by either drugs and overdosing, or... suicide, or... alcoholism... or simply become careless and die in accidents... So this is clearly, and thanks to Anne Case and Angus Deaton for their excellent work, because here we can really see... The book is excellent. They talk about social immiseration, broken families and many other things. It really is a very coherent understanding of these problems.