If you ever fall under the delusion that the hunter gatherers have/had a better form of existence, even if it might have been tougher in other ways, this work is for you. Civilization is inevitable and excludes these other ways of life, for better or worse. Kirkpatrick Sale shows how our brains are just that kind of hardware that allows us to think ahead for the future. Those more primitive peoples weren't living full capacity; intentionally or not they don't stand a chance against the encroach of glacier-like civilization. Yes there is a lot of archaeology here, tying the succession of tools and environment-change evidence into the [false] bioanthropology of the skull shape changes of our [made up] common ancestors.
[The work shows that the data collected for the interpretive purposes of the atheistic-evolutionary faith, has enough flexibility-by-ambiguity to be interpreted in according to the Christian theistic scriptural history, even if the interpreter is himself atheistic! I don't accept the faith in a single-cell origin evolution. But strangely, Sale heads in the direction of my faith by way of this atheistic faith, which is sort of what theistic evolutionists do, but he's approaching it seemingly from the other side. This shows not only the flexibility of the data, but an independent corroboration of our history of things.]
So his story goes that the psychology is important, too: Mt. Toba erupts and drastically changes how we had to survive. So not only do we now organize ourselves into ever more complex systems that compete with each other, taking into account more and more of the future, but we don't have fun with this new sophistication, we are really kind of vicious about it instead because we're traumatized from the event. And besides this organization requires hierarchy, which tends to become corrupt a lot. So this book is a spanner in the works of a lot of eco-egalitarian thinking out there on their own (attempted scientific) ground. If we're going to overcome these problems and return to Eden, in this atheist/agnostic/scientistic sense, we either have to change our own biology (oh no, transhumanist engineer, please don't put chips in my brain), or use our nature rightly, whatever that means.
Well more than the title here looks like the Old Testament story of the Fall, except with a volcano being blamed for our post-Edenic exile instead of a moral failure. Is Sale a Christian? Who knows. But he seems to assemble the evidence much more coherently and effortlessly than other theorists in this eco-area I read, as you would expect from leveraging some true Christian background assumptions on protology (whether he was unconsciously using them or not). You can see how the premise of Watchmen is operating here too, whether it is from one of his own (incompatible) secularist Modern assumptions (which seems more deliberate for Sale, hence the fake bioanthropological timelines and assumption of the pseudoscience of evolution). We need another big, common Enemy, misidentified as some morally irrelevant natural phenomenon like said volcanic erruption, for the sake of our unity, or we will destroy each other instead (they did this with global warming and do it with the 'backwards' part of our nature, expressed in traditional views, which they straw-man and believe to be superceded by their pseudoscience). Say Hello to the next version of that, the corona virus. (Written 3 - 17 - 20.)