Turchin on Human Sacrifice and Society

[by Mark Safranski / “zen“]

Last week I posted on Human Sacrifice and State-Building, which focused on research findings published in Nature regarding the role of human sacrifice in establishing hierarchical societies. My interest was primarily in the way the gory practices of ISIS today seem to mirror this dynamic from prehistoric, ancient and chiefdom societies. Bogfriend T. Greer helpfully alerted me to the fact that noted scholar and cultural evolutionist, Peter Turchin also blogged regarding this research and took a critical posture.  Turchin, also addressed human sacrifice to some degree in his latest book, Ultrasociety, which has been on my list to read for his take on the role of warfare but which I have yet to do.

Turchin’s reasons for blogging this article are different from mine, so I suggest that you read him in full as I intend to comment only on selected excerpts:

Is Human Sacrifice Functional at the Society Level?

An article published this week by Nature is generating a lot of press. Using a sample of 93 Austronesian cultures Watts et al. explore the possible relationship between human sacrifice (HS) and the evolution of hierarchical societies. Specifically, they test the “social control” hypothesis, according to which human sacrifice legitimizes, and thus stabilizes political authority in stratified class societies.

Their statistical analyses suggest that human sacrifice stabilizes mild (non-hereditary) forms of social stratification, and promotes a shift to strict (hereditary) forms of stratification. They conclude that “ritual killing helped humans transition from the small egalitarian groups of our ancestors to the large stratified societies we live in today.” In other words, while HS obviously creates winners (rulers and elites) and losers (sacrifice victims and, more generally, commoners), Watts et all argue that it is a functional feature—in the evolutionary sense of the word—at the level of whole societies, because it makes them more durable. There are two problems with this conclusion. First, Watts et al. do not test their hypothesis against an explicit theoretical alternative (which I will provide in a moment). Second, and more important, their data span a very narrow range of societies, omitting the great majority of complex societies—indeed all truly large-scale societies. Let’s take these two points in order.

Turchin is correct that study focuses on Austronesian islanders in clan and tribal settings and that’s a pretty narrow of a base from which to extrapolate. OTOH, the pre-Cortez estimated population of the Aztec empire begins at five million on the low end. Estimates of the population of Carthage proper, range from 150,000 to 700,000. That’s sufficiently complex that the Mexica and Carthaginians each established sophisticated imperial polities and yet both societies remained extremely robust practitioners of human sacrifice at the time they were conquered and destroyed.

Maybe a more useful approach than simply expanding the data set would be to ask why human sacrifice disappears earlier in some societies than in others or continues to be retained at high levels of complexity?

An alternative theory on the rise of human sacrifice and other extreme forms of structural inequality is explained in my recent book Ultrasociety ….

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