One of the chief reasons I became an advocate of the Cultural Multilevel Selection (CMLS) theory is that it wonderfully clarifies the relationship between competition and cooperation. Competition between groups (up to whole societies) fosters within-group cooperation. Competition with

I have traveled extensively in southern Africa over the past 25 years—South Africa, Lesotho, Botswana, Zambia, Malawi, and now Namibia. But in all my previous trips I was lucky to see a black rhino only once (in South Africa’s Hluhluwe-iMfolozi Park). The problem, of course, is

As a boy growing up in Russia I read a bunch of adventure stories about intrepid explorers traveling to far-off places. In one book a band of adventurers voyaged to the Skeleton Coast to search for diamonds. So one might say that it’s been a long time that I dreamed of visiting this r

In the first part of my critique of The Dictator’s Handbook: Why Bad Behavior Is Almost Always Good Politics by Bruce Bueno de Mesquita and Alastair Smith (BDM&S), I slammed the theoretical foundations of their argument. The book also has a lot of empirical content, and in Part II

One of my long-term interests is in the dynamics of leader-followers systems. Large-scale societies and other large groupings of people (including corporations) cannot be purely egalitarian. As I’ve written in another post, humans are not ants. We must have leaders to organize large-s

The last installment in this series (first one here) adopts a more critical stance towards the article by McConnell et al., Lead pollution recorded in Greenland ice indicates European emissions tracked plagues, wars, and imperial expansion during antiquity. As I said in the second pos

While I am certainly very grateful to the team of authors of Lead pollution recorded in Greenland ice indicates European emissions tracked plagues, wars, and imperial expansion during antiquity, it is curious that the only quantitative part of their study was coming up with the lead p

When I started 20 years ago on the research direction that eventually became Cliodynamics, I thought that getting data to test theories about historical dynamics would be tough. Within a couple of years I realized that actually it’s not true. There is an enormous amount of quant

Yesterday the top science journal Nature published a bomb-shell article, but my feeling is that biologists haven’t yet realized the explosive nature of the report. I’ll explain, but first we need to make a lengthy excurse into the history of the group selection idea. Whether group sel