Publication
Peter Turchin
Cultural macroevolution (CME) is a subfield of cultural evolution that studies large-scale changes in the cultural traits of whole groups. A central question in CME is how and why characteristics of polities (such as chiefdoms, states, and empires) evolve over time. Multilevel selection, and especially its application to cultural evolution, provides a very useful theoretical framework for CME because many polity-level characteristics evolve under selection pressures that act in opposite directions at different levels of hierarchical organization. In this chapter I discuss the conceptual framework that multilevel selection provides for studying CME and summarize the main empirical results from my recent book (Turchin 2025). I conclude that major predictions of cultural multilevel selection theory enjoy substantial empirical support.
Journal
SocArXiv
Peter Turchin. (2026). Multilevel Selection in Cultural Macroevolution. SocArXiv. https://doi.org/10.31235/osf.io/ud8jm_v1
Connections
What Complexity Science Tells Us about the Evolution of Complex Societies
Why do the 99.9% of humanity live in large-scale societies organized as states? During the Holocene (the last 10,000 years), human societies have been transformed utterly: from small groups of nomadic foragers to our current interconnected world of large-scale societies organized as states. Population numbers, agricultural productivity, technological…
MLS in Cultural Macroevolution
Combining quantitative analysis with large historical datasets, Peter Turchin and collaborators study how complex societies evolve, why they periodically enter crisis, and why some recover while others undergo severe breakdown.