Peter Turchin Quotes

Quantitative historical analysis reveals that complex human societies are affected by recurrent—and predictable—waves of political instability...

You have to think dynamically... I'm talking as a scientist about entering into a crisis, and then... societies have to somehow get out of it, so in Douglass North and his colleagues, for example, they look specifically at the Glorious Revolution... the exit from about 60 years of conflict, which started... in Scottish Wars 1639 and... ended in 1690s with the new arrangements. So... when societies exit from these crises... Sometimes, by the way, they don't exit, they essentially have political fragmentation. ...Think about the Roman Empire, which has fragmented, and there was no new Roman Empire. But frequently we do have reconstitution, ...England, for example, reconstituted itself. So think about it dynamically. You have to look at the path of the crisis, and then the path out of the crisis.

So this is how drives intraelite competition, intraelite conflicts, rise of the counter-elites and then sociopolitical instability.

[W]hile declining living standards are often a contributing factor to... instability, reversing this trend does not end instability until elite overproduction is... reversed...

[T]here are some reasons to doubt that growing inequality might be a direct mechanism... of instability, because humans are very bad at perceiving inequality. ...[A] number of studies ...show that people, when... asked to estimate the degree of income or wealth inequality... their opinions essentially have nothing to do with what is actually... measured by economists.

Making scientific predictions about the events that happened, but are not known to the authors of the theory, is a valid scientific approach in historical sciences, such as geology, astrophysics, evolutionary biology, and (history as science). It is sometimes referred to as "". ...[T]he primary way of testing theories in historical dynamics is retrodiction. But when mulitple successful tests using retrodiction (prediction about the past) are complemented with a few cases of prediction about the future, our degree of confidence in the theory is... enhanced.

[T]he... forecast: “The next decade is likely to be a period of growing instability in the United States and western Europe” ...was not simply a projection of the current trend in social instability into the future. ...[T]he basis for this forecast was a quantitative model that took as inputs the major SD drivers for instability (immiseration, intraelite competition, and state (in)capacity) and translated them into the Political Stress Indicator (PSI)... strongly correlated with socio-political instability. The rising curve of the... PSI... suggests a growing future socio-political instability.

What does the wealth pump do on the elite side..? Declining relative wages of workers set up this wealth pump that transfers wealth from workers to the economic elites... [A]s a result... a larger fraction of GDP goes to... the economic elites, which are both capital holders and top layers of administration of corporations (corporate officers). ...[T]his creates a favorable economic conjuncture for the economic elites and results in higher rates of upward social mobility. Elite numbers, as a result... grow and so does their consumption levels.

The SDT is not merely a theory for understanding why internal violence outbreaks develop and spike. By providing... understanding of the deep structural causes of socio-political instability and societal breakdown, SDT... gives us tools for adopting... reforms and policy interventions that can reverse these drivers of instability.

[D]isease outbreaks occur much more frequently during... crisis periods. Such epidemics historically have had a disproportionate effect on the less advantaged... and the Covid-19 pandemic was not an exception. ...[I]n terms of ... the pandemic... further worsened the well-being of large swaths of the American population... consequently, drove up the mass-mobilization potential. ...[G]overnmental dysfunction in dealing with the pandemic, coupled with intra-elite infighting, will likely further depress... trust in government institutions. Thus... the coronavirus has... further destabilize[d] the American .

We have analyzed CrisiDB because there's plenty of data on weather proxies. ...Weather, climate worsening seems to serve often as a trigger for crisis. But the key question is whether the societies have resilience... When populations are not immiserated and elites are not overproduced the social stability and resilience is very high, and societies adjust reasonably well to climate shocks. It's really when drivers for instability have been working for a while, that's when the climate can often serve as the trigger.

[U]ntil the fundamental SD drivers for instability are reversed, there will be other triggering events... social turbulence may continue for years ahead.

[E]ssentially in any society, however the elites are defined, whether economic, administrative, military, or ideological, they need to support a certain level of income, and so when their numbers grow, inevitably they have to extract that income from the commoners.

This prediction was based on a computational model that quantified in the USA such structural-demographic forces for instability as popular immiseration, intraelite competition, and state weakness prior to 2010.

[I]nequality... at least in this model, is not a direct driver. It's a proxie for the direct drivers, which is immiseration and elite overproduction.