Finished on 4/10/20 in Bunya Mountains, Australia.

"“In effect, humans have dragged a body with a long hominid history into an overfed, malnourished, sedentary, sunlight-deficient, sleep-deprived, competitive, inequitable, and socially-isolating environment with dire consequences.”"

"What tribal people would consider a profound betrayal of the group, modern society simply dismisses as fraud."

"According to German psychologists who compared notes with their American counterparts after the war, it was the untouched cities where civilian morale suffered the most. Thirty years later, H. A. Lyons would document an almost identical phenomenon in riot-torn Belfast."

"Humans are so strongly wired to help one another—and enjoy such enormous social benefits from doing so—that people regularly risk their lives for complete strangers. That risk-taking tends to express itself in very different ways in men and in women. Men perform the vast majority of bystander rescues, and children, the elderly, and women are the most common recipients of them. Children are helped regardless of gender, as are the elderly, but women of reproductive age are twice as likely to be helped by a stranger than men are. Men have to wait, on average, until age seventy-five before they can expect the same kind of assistance in a life-threatening situation that women get their whole lives. Given the disproportionately high value of female reproduction to any society, risking male lives to save female lives makes enormous evolutionary sense. According to a study based on a century of records at the Carnegie Hero Fund Commission, male bystanders performed more than 90 percent of spontaneous rescues of strangers, and around one in five were killed in the attempt. (“Hero” is generally defined as risking your life to save non-kin from mortal danger. The resulting mortality rate is higher than for most US combat units.) Researchers theorize that greater upper-body strength and a predominantly male personality trait known as “impulsive sensation seeking” lead men to overwhelmingly dominate this form of extreme caretaking."

"The perennial conservative concern about high taxes supporting a nonworking “underclass” has entirely legitimate roots in our evolutionary past and shouldn’t be dismissed out of hand. Early hominids lived a precarious existence where freeloaders were a direct threat to survival, and so they developed an exceedingly acute sense of whether they were being taken advantage of by members of their own group. But by the same token, one of the hallmarks of early human society was the emergence of a culture of compassion that cared for the ill, the elderly, the wounded, and the unlucky. In today’s terms, that is a common liberal concern that also has to be taken into account. Those two driving forces have coexisted for hundreds of thousands of years in human society and have been duly codified in this country as a two-party political system. The eternal argument over so-called entitlement programs—and, more broadly, over liberal and conservative thought—will never be resolved because each side represents an ancient and absolutely essential component of our evolutionary past."