Peter Valentinovich Turchin (/ˈtɜːrtʃɪn/; Russian: Пётр Валенти́нович Турчи́н, IPA:[ˈpʲɵtrvəlʲɪnʲˈtʲinəvʲɪtɕtʊrˈtɕin]; born 22 May 1957)[1] is a Russian-American complexity scientist, specializing in an area of study he and his colleagues developed called cliodynamics—mathematical modeling and statistical analysis of the dynamics of historical societies.[2]
One of Turchin's most prominent fields of research is his study of the hypothesis that population pressure causes increased warfare. Turchin, in collaboration with Korotayev, has shown that negative results do not falsify the population-warfare hypothesis.[5] Population and warfare are dynamical variables. If their interaction causes sustained oscillations, then we do not in general expect to find strong correlation between the two variables measured at the same time (that is, unlagged). Turchin and Korotayev have explored mathematically what the dynamical patterns of interaction between population and warfare (focusing on internal warfare) might be in stateless and state societies. Next, they tested the model predictions in several empirical case studies: early modern England, Han and Tang China, and the Roman Empire. Their empirical results have supported the population-warfare theory: Turchin and Korotayev have found that there is a tendency for population numbers and internal warfare intensity to oscillate with the same period but shifted in phase (with warfare peaks following population peaks). Furthermore, they have demonstrated that the rates of change of the two variables behave precisely as predicted by the theory: population rate of change is negatively affected by warfare intensity, while warfare rate of change is positively affected by population density.[5]
In 2010 Turchin published research using 40 combined social indicators to predict that there would be worldwide social unrest in the 2020s.[8][9] He subsequently cited the success of Donald Trump's 2016 presidential campaign as evidence that "negative trends seem to be accelerating" and that there has been an "unprecedented collapse of social norms governing civilized discourse".[10] In 2020, Turchin and Jack Goldstone predicted that political and civic unrest in the United States would continue regardless of the party in power until a leader took action to reduce inequality and improve the social indicators that are tracked in their research.[11]
Worksedit
Turchin has published over 200 scientific articles (including more than a dozen in Nature, Science, or PNAS) and at least eight books. He is the founder of the journal, Cliodynamics, "...dedicated to 'the search for general principles explaining the functioning and dynamics of historical societies'",[2] and manages a blog, Cliodynamica.[12]
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Booksedit
Turchin, Peter (2023). End Times: Elites, Counter-Elites and the Path of Political Disintegration. Allen Lane. ISBN 978-0241553480.
Turchin, Peter; Hoyer, Daniel (2020). Figuring Out the Past; The 3,495 Vital Statistics that Explain World History. Economist Books. ISBN 9781541762688.
Turchin, Peter (2016). Ages of Discord: A Structural-Demographic Analysis of American History. Beresta Books. ISBN 978-0996139540.
Turchin, P. (2016), Ultrasociety: How 10,000 Years of War Made Humans the Greatest Cooperators on Earth, Beresta Books, ISBN 978-0996139519.
Turchin, Peter (2003). Complex Population Dynamics: A Theoretical/Empirical Synthesis. Princeton University Press. ISBN 978-0691090214.
Turchin, Peter (1998). Quantitative Analysis of Movement: Measuring and Modeling Population Redistribution in Animals and Plants. Sinauer Associates. ISBN 978-0878938476.
Selected journal articlesedit
Explaining the rise of moralizing religions: A test of competing hypotheses using the Seshat Databank. Religion, Brain & Behavior, 2023, 13(2), 167-194.
Whitehouse, H.; François, P.; Savage, P.; Currie, T.; Feeney, K.; Cioni, E.; Purcell, R.; Ross, R.; Larson, J.; Baines, J.; Ter Haar, B.; Covey, A.; Turchin, P. (2019). "Complex societies precede moralizing gods throughout world history". Nature. 568 (7751): 226–229. Bibcode:2019Natur.568..226W. doi:10.1038/s41586-019-1043-4. hdl:10871/36936. PMID 30894750. S2CID 84186554. (Article retracted on July 7, 2021)
Turchin, P.; Currie, T.E.; Turner, E.A.; Gavrilets, S. (2013). "War, space, and the evolution of Old World complex societies". Proc Natl Acad Sci U S A. 110 (41): 16384–9. Bibcode:2013PNAS..11016384T. doi:10.1073/pnas.1308825110. PMC3799307. PMID 24062433.
Turchin, P.; Scheidel, W. (2009), "Coin Hoards Speak of Population Declines in Ancient Rome", PNAS, 106 (4): 17276–17279, Bibcode:2009PNAS..10617276T, doi:10.1073/pnas.0904576106, PMC2762679, PMID 19805043
Turchin, P. (2009), "Long-term population cycles in human societies" (PDF), in Ostfeld, R. S.; Schlesinger, W. H. (eds.), The Year in Ecology and Conservation Biology, 2009, pp. 1–17, archived from the original (PDF) on 2011-07-21, retrieved 2009-08-26
Turchin P. (2006). Population Dynamics and Internal Warfare: A Reconsideration. Social Evolution & History 5(2): 112–147 (with Andrey Korotayev).
Burtsev, M.; Turchin, P. (2006), "Evolution of cooperative strategies from first principles", Nature, 440 (7087): 1041–1044, Bibcode:2006Natur.440.1041B, doi:10.1038/nature04470, PMID 16625195, S2CID 4340926
Turchin, P.; Oksanen, L.; Ekerholm, P.; Oksanen, T. & Henttonen, H. (2000), "Are lemmings prey or predators?", Nature, 405 (6786): 562–565, Bibcode:2000Natur.405..562T, doi:10.1038/35014595, PMID 10850713, S2CID 1945851
Turchin, P.; Taylor, A. D. & Reeve, J. D. (1999), "Dynamical role of predators in population cycles of a forest insect: an experimental test", Science, 285 (5430): 1068–1071, doi:10.1126/science.285.5430.1068, PMID 10446053
^Turchin, P (2009). "A Theory for Formation of Large Empires" (PDF). Journal of Global History. 4 (2): 191–207. doi:10.1017/s174002280900312x. S2CID 73597670.
^Turchin, P. (2003), Historical Dynamics: Why States Rise and Fall, Princeton University Press.
^Korotayev A.V., Khaltourina D.A. Introduction to Social Macrodynamics: Secular Cycles and Millennial Trends in Africa. Moscow: URSS, 2006. ISBN 5-484-00560-4.
^Turchin, Peter (4 February 2010). "Political instability may be a contributor in the coming decade". Nature. 463 (607): 608. Bibcode:2010Natur.463..608T. doi:10.1038/463608a. PMID 20130632.
^"Will the US Really Experience a Violent Upheaval in 2020?". Live Science. 3 August 2012.
^Turchin, Peter; Goldstone, Jack (10 September 2020). "Welcome To The 'Turbulent Twenties'". NOEMA. Retrieved 19 October 2020.
^"Cliodynamica: A Blog about the Evolution of Civilizations". Cliodynamica. 24 October 2016. Retrieved 18 January 2021.
Further readingedit
Aldhous, Peter (October 24, 2020). "This Scary Statistic Predicts Growing US Political Violence — Whatever Happens On Election Day". BuzzFeed. Retrieved 22 November 2020. Article on work by Goldstone and Turchin.
Goldstone, Jack A.; Turchin, Peter (September 10, 2020). "Welcome To The 'Turbulent Twenties'". Noema Magazine. Berggruen Institute. Retrieved 22 November 2020.
Goldstone, Jack A. (2016) [1991]. Revolution and Rebellion in the Early Modern World: Population Change and State Breakdown in England, France, Turkey, and China,1600-1850 (25th Anniversary ed.). Routledge. ISBN 9781315408606. Retrieved 22 November 2020. Turchin adopted and expanded Goldstone's model to apply to modern industrial states. They later became collaborators.
Osnos, Evan, "Ruling-Class Rules: How to thrive in the power elite – while declaring it your enemy", The New Yorker, 29 January 2024, pp. 18–23. "In the nineteen-twenties... American elites, some of whom feared a Bolshevik revolution, consented to reform... Under Franklin D. Roosevelt... the U.S. raised taxes, took steps to protect unions, and established a minimum wage. The costs, Turchin writes, 'were borne by the American ruling class.'... Between the nineteen-thirties and the nineteen-seventies, a period that scholars call the Great Compression, economic equality narrowed, except among Black Americans... But by the nineteen-eighties the Great Compression was over. As the rich grew richer than ever, they sought to turn their money into political power; spending on politics soared." (p. 22.) "[N]o democracy can function well if people are unwilling to lose power – if a generation of leaders... becomes so entrenched that it ages into gerontocracy; if one of two major parties denies the arithmetic of elections; if a cohort of the ruling class loses status that it once enjoyed and sets out to salvage it." (p. 23.)
External linksedit
Wikiquote has quotations related to Peter Turchin.
Cliodynamica A Blog about the Evolution of Civilizations @PeterTurchin.com
Bob Holmes (2012-08-23). "Calculated violence: Numbers that predict revolutions". New Scientist.
Maini, Alessandro. "On Historical Dynamics by P. Turchin". Biophysical Economics and Sustainability 5, No. 1 (4 February 2020): 3. DOI: 10.1007/s41247-019-0063-x.