David Geary

Geary argues that people cannot relax despite comfortable modern lives because status historically buffered mortality risk during unpredictable crises.

“a lot just can't turn it off. And it's because of the relation between status and mortality risk and the unpredictability of when the population will crash again”

Modern Wisdom: How War Shaped Human Evolution - David Geary - #1172 (Nov 5, 2026) · Listen from 54:26

Geary suggests that in peaceful societies status-driven aggression shifts to social media and cancel culture.

“I think they get bored and they start attacking each other on social media. You got cancel culture”

Modern Wisdom: How War Shaped Human Evolution - David Geary - #1172 (Nov 5, 2026) · Listen from 31:10

Geary claims that status-driven, successful men consistently reproduce more than other men across traditional and modern societies.

“It is clear that men who are status-driven, focused, and are successful in those endeavors reproduce more than other men”

Modern Wisdom: How War Shaped Human Evolution - David Geary - #1172 (Nov 5, 2026) · Listen from 19:37

Geary contends that status-focused women who underperform in male hierarchies attribute gaps to bias and sexism as post hoc explanations.

“And so they come up with post hoc explanations like bias, systematic sexism, and so forth”

Modern Wisdom: How War Shaped Human Evolution - David Geary - #1172 (Nov 5, 2026) · Listen from 48:35

Geary describes women's evolved strategy as building social networks within male-built institutions to gain support and resources for themselves and their children.

“So it's not building institutions, it is working the dynamics within them”

Modern Wisdom: How War Shaped Human Evolution - David Geary - #1172 (Nov 5, 2026) · Listen from 24:40

Geary criticizes social scientists for refusing to accept that humans are a violent species.

“a lot of social scientists don't like to hear that we're a violent species. It's kind of like off the table for them, which means they'll never fully understand our evolution”

Modern Wisdom: How War Shaped Human Evolution - David Geary - #1172 (Nov 5, 2026) · Listen from 28:16

Geary argues that war was the primary driver of building civilizations.

“I think war was the primary driver of the building of civilizations”

Modern Wisdom: How War Shaped Human Evolution - David Geary - #1172 (Nov 5, 2026) · Listen from 26:40

Geary says the second edition of The Origin of Mind will argue the brain is not a blank slate.

“Basically saying, you know, there's no way it's a blank slate. The only place you get a blank slate is academic social scientists”

Modern Wisdom: How War Shaped Human Evolution - David Geary - #1172 (Nov 5, 2026) · Listen from 1:10:09

Geary advises that competitive parenting efforts like PTA involvement no longer make a long-term difference for children, so people can relax.

“In traditional societies, the PTA moms did help their kids. It mattered”

Modern Wisdom: How War Shaped Human Evolution - David Geary - #1172 (Nov 5, 2026) · Listen from 1:07:59

Geary argues that the patriarchy is real and stems from male kin coalitions that built institutions and are motivated to dominate them.

“well, the patriarchy, I guess, you know, we hear a lot about that and, you know, a lot of debate about it, but basically my argument is that, well, yeah, it's real”

Modern Wisdom: How War Shaped Human Evolution - David Geary - #1172 (Nov 5, 2026) · Listen from 44:20

Geary says that, with Mark Flinn, he argued 25 years ago that australopithecines lived in gorilla-like single-male harems, the germ of human paternal investment.

“So Mark Flynn and I argued 25 years ago now that our Australopithecine ancestors were more like gorillas”

Modern Wisdom: How War Shaped Human Evolution - David Geary - #1172 (Nov 5, 2026) · Listen from 40:50

Geary explains that better front-to-back brain connectivity lets humans use the default mode network to simulate future states rather than just relive the past.

“we can take that system and generate images ourself instead of just reliving past stuff we can take that system and generate a future state”

Modern Wisdom: How War Shaped Human Evolution - David Geary - #1172 (Nov 5, 2026) · Listen from 31:49

Geary states that reproductive skew among men is about three times that among women in hunter-gatherer societies, rising to about a hundredfold in early empires.

“Now that threefold variation in reproductive skew was amplified to about a hundred fold difference when we move into early empires”

Modern Wisdom: How War Shaped Human Evolution - David Geary - #1172 (Nov 5, 2026) · Listen from 17:37

Geary contends that the 17-to-1 female-to-male ancestor ratio could only have resulted from intense organized violence among men.

“the only way you could get the pattern of the 17 to 1 ratio is – intense organized violence”

Modern Wisdom: How War Shaped Human Evolution - David Geary - #1172 (Nov 5, 2026) · Listen from 10:38

Geary argues that human expansion was driven by male kin-based coalitions, because men stayed in their birth groups while women migrated out.

“I'm arguing in the book and in my, I've got a couple of pieces on this in my sub stack, that this was driven by men, by males”

Modern Wisdom: How War Shaped Human Evolution - David Geary - #1172 (Nov 5, 2026) · Listen from 5:17

Geary argues that Homo erectus expansion brought population growth, intragroup and intergroup competition, and the gradual elimination of competitor hominin species.

“we have the technological advances, the population expansion, with increase within group competition, increase between group competition, and the elimination of competitor species”

Modern Wisdom: How War Shaped Human Evolution - David Geary - #1172 (Nov 5, 2026) · Listen from 3:09