Azar Gat, “War in Human Civilization” (Oxford UP, 2006)

07/15/10 • 53 min

Historians don’t generally like the idea of “human nature.” We tend to believe that people are intrinsically malleable, that they have no innate “drives,” “instincts,” or “motivations.” The reason we hew to the “blank slate” notion perhaps has to do with the fact–and it is a fact–that we see remarkable diversity in the historical record. The past, we say, is a foreign country; they do things differently there. But there are also political reasons to hold to the idea that we have no essence, that everything is “socially constructed.” Where, for example, would modern liberalism be without this concept? If our natures are fixed in some way, then what should we do to improve our lot?

Given the strength and utility of the “blank slate” doctrine, anyone hoping to question it successfully must possess considerable political savvy and, more importantly, an overwhelming mass of evidence. When the first modern challenge was issued–by the Sociobiologists of the 1970s–they had the latter (I would say), but not the former. Happily, their successors–principally the practitioners of “evolutionary psychology”–have both (again, in my opinion). Azar Gat is a good example. In his pathbreaking War in Human Civilization (Oxford UP, 2006), he explains in politically palatable and empirically convincing terms just why, evolutionarily speaking, our evolved natures guided the way we have fought over the past 200,000 years. He rejects the notion that we have anything like a “violence instinct.” Rather, we have a kind of “violence tool,” given to us by natural selection. In certain circumstances, we are psychologically inclined to use it; in others, not. In this way we are no different than many of our fellow species, the primates in particular. Of course, unlike them, our use of collective violence has an (extra-genetic) history. Azar does a masterful job of describing and explaining how, even while our nature has remained the same, the way we fight has changed. And here the news is good: believe it or not, we–humanity as a whole–have been becoming more peaceful over the past 10,000 years, and radically more peaceful (at least in the developed world) over the past 200 years. Azar can explain this too, and does in the interview.

I cannot emphasizeenough how important this book is, both as a model of what I would call “scientifically-informed” history and a sort of guide to those of us who, despite having abandoned the “blank slate,” believe that we have the capacity to create a better world.

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Previous Episode

P. Bingham and J. Souza, “Death From a Distance and the Birth of a Humane Universe” (BookSurge, 2009)

Long ago, historians more or less gave up on “theories of history.” They determined that human nature was too unpredictable, cultures too various, and developmental patterns too evanescent for any really scientific theory of history to be possible. Human history, they said, was chaos.

The problem is that human history isn’t chaos at all. The “hard” human sciences–evolutionary biology and anthropology in particular–have shown that human nature is quite predictable, cultural variability is strictly constrained, and ongoing patterns of social development have ancient roots. Historians can ignore these facts all they like, but that doesn’t make them any the less true. It does, however, impoverish their discipline by ceding the search for a satisfying theory of history to scientists. Neither Paul Bingham nor Joanne Souza are historians. The former is a molecular biologist and the latter an evolutionary psychologist. But they have formulated an elegant theory of human history in Death From a Distance and the Birth of a Humane Universe (2009). Like any good theory, it explains a lot with a little. To put it briefly, human society has gone from simple/small to massive/complex because humans alone among animals were/are able to suppress intra-group conflicts of interest by means of low-cost coercion. Bingham and Souza point out that the big “jumps” in social size and complexity–the neolithic revolution, the growth of archaic states, the birth of the nation-state, the rise of globalization–have all been associated with the evolution/introduction of new, more powerful coercive abilities. Paradoxically, it was new weapons that created more and better lives over the course of the last several hundred thousand years.

This brief summary cannot do justice to the richness of Bingham’s and Souza’s theory. You need to read it for yourself. When you do, I guarantee you will see the past and present in a new way.

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Next Episode

Fred Spier, “Big History and the Future of Humanity” (Wiley-Blackwell, 2010)

My son Isaiah likes to play the “why” game. Isaiah: “Why is my ice cream gone?” Me: “Because you ate it.” Isaiah: “Why did I eat it?” Me: “Because you need food.” Isaiah: “Why do I need food?” And so on. Isaiah naturally wants to know why things are the way they are. We all do. Most of us, however, are taught that seeking these ultimate answers is quixotic. We say either that there are no ultimate answers or that you’d have to know too many to answer them. In this conception, there either is no story of everything or, if there is, no one can tell it.

Thankfully, Fred Spier disagrees. His path-breaking Big History and the Future of Humanity (Wiley-Blackwell, 2010) succeeds in sketching the story of everything from the origins of the universe to the reason my son’s ice cream is gone. In around two-hundred lucidly written pages he takes us from the Big Bang, to the separation of matter and energy, to the rise of elementary particles, to the formation of galaxies, solar systems, stars, and planets, to the creation of elements, to the origin of life, to the evolution of biotic complexity, to the emergence of humans, to the origin of society, to the invention of ice cream. What enables him to do this is a simple, unifying theory, namely, that all forms of complexity are the result of energy flowing through matter within certain boundaries (“Goldilocks” conditions). Everything with edges, a shape, parts, or an internal structure is the result of energy flowing through matter within certain boundaries and is only maintained so long as the energy keeps flowing and the boundaries don’t change.

Historiographically, this book takes us into new and promising territory. But even more than that it is timely, for the energy and conditions that maintain our complexity–that is, modern industrial life–are both in jeopardy. We consume much more energy than we produce, and the kind of energy we consume is moving us out of the Goldilocks zone. If unchecked, the result of these two processes is inevitable: a loss of complexity, which is to say the destruction of modern industrial society. That’s something to think about, and maybe even do something about.

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