Modern WisdomWhy Science Says Men & Women Will Never Be The Same - David Geary
At a glance
WHAT IT’S REALLY ABOUT
Why Biology, Not Culture Alone, Drives Deep Sex Differences Today
- David Geary and Chris Williamson explore the biological roots of sex differences in cognition, interests, and behavior, and how these play out in modern societies. They discuss the “gender equality paradox,” where richer, more egalitarian countries actually see larger sex differences in STEM participation and personality. The conversation connects brain organization, hormones, and evolved roles to contemporary issues like male educational decline, the ‘sedation’ of disengaged men, and the rapid rise in adolescent transgender identification, especially among girls. Geary argues that denying sex differences distorts policy, data interpretation, and how we understand current social crises.
IDEAS WORTH REMEMBERING
5 ideasSex differences in brain organization are large, measurable, and emerge early.
MRI work shows you can predict a 10‑year‑old’s sex from brain patterns with about 93% accuracy, and spontaneous brain-activity differences appear prenatally and in early infancy—undermining claims that all differences are purely socialization.
Greater societal gender equality often magnifies—not shrinks—sex differences.
In more prosperous, gender-equal nations, fewer women choose inorganic STEM fields and personality and cognitive sex differences increase, likely because people are freer to follow their intrinsic preferences and comparative advantages.
Interest and comparative advantage, not raw ability, shape women’s lower STEM representation.
Girls worldwide tend to be relatively stronger at reading, even when their math and science are high; rationally, many choose reading-heavy fields, widening sex gaps in certain STEM domains as opportunities expand.
Boys and men are increasingly failing in education and work, creating a latent social risk.
Women now out-complete men in college by about 60/40, millions of prime‑age men are not in education, employment, or training, and many spend thousands of hours on screens subsidized by benefits or parents—leaving them sedated but potentially volatile if supports collapse.
Male and female ‘folk physics’ and ‘folk psychology’ reflect evolved specializations.
Males tend to excel in spatial skills, navigation, tracking trajectories, and throwing; females tend to excel in reading faces, theory of mind, verbal nuance, and dyadic relationship management—suites of traits that map onto ancestral hunting/warfare vs. social support and relational competition.
WORDS WORTH SAVING
5 quotesYou can take a brain pattern of a 10‑year‑old and predict whether that brain belongs to a boy or a girl about 93% of the time.
— David Geary
As countries became more gender equal, there was proportionately fewer women going into these inorganic sciences.
— David Geary
The physical sex differences get bigger because the overall health of the population gets better.
— David Geary
Girls and women do really well at one‑on‑one kind of emotional intelligence… probably about 85% of them are better than the average guy.
— David Geary
It’s basically they’re being paid off to be quiet and just deal with their situation.
— David Geary
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