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The newsletter of Professor Steve Stewart-Williams. Evolutionary psychology, sex differences, nature and nurture, science, philosophy, and more. Click to read The Nature-Nurture-Nietzsche Newsletter, by Steve Stewart-Williams, a Substack publication with tens of thousands of subscribers.

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Blog 3 months ago
12 More Things Everyone Should Know About IQ
Photo by Randy Fath on UnsplashShareSubscribe nowGive a gift subscriptionThis is the latest post in my "12 Things Everyone Should Know" series. You can access the full collection here.In 2024, I published a piece titled "12 Things Everyone Should Know Abo
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Blog 3 months ago
The Four Horsemen of the Evolutionary Apocalypse
ShareSubscribe nowGive a gift subscriptionLatest Podcast AppearanceThis was a fun one: the Modern Wisdom evolutionary psychology roundtable featuring , Macken Murphy, , and yours truly. We covered everything from looksmaxxing and the ick to the dangers of
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Blog 3 months ago
Smarter People Are More Prosocial
Photo by Rashidul Islam on UnsplashShareSubscribe nowGive a gift subscriptionThis is the latest post in my "Smarter People" series. Check out the full collection here.Are smart people naughty or nice? A new study suggests the latter. Analyzing data from 1
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Blog 3 months ago
Darwin Was Right About Sex Roles
Photo by Damon Hall on UnsplashShareSubscribe nowGive a gift subscriptionDarwin's theory of sexual selection is one of the most powerful ideas in evolutionary biology. It's also one of the most controversial. Is it really true, as Darwin proposed, that se
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Blog 3 months ago
How I Went From Dangerous Heretic to Boring Academic in Just Three Years - Without Changing Any of My Views
ShareSubscribe nowGive a gift subscriptionIt's podcast time again, folks! A few weeks ago, I had the great pleasure of returning to 's Uncomfortable Conversations. Josh and I had a fun, wide-ranging discussion about my book, A Billion Years of Sex Differe
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Blog 3 months ago
Why Men Take More Risks
Image by GPT5.ShareSubscribe nowGive a gift subscriptionWhy are men so much more likely than women to die doing something spectacularly unwise? Why are they overrepresented among extreme sports enthusiasts, workers in dangerous occupations, and people who
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Blog 3 months ago
Why Two People with the Same IQ Can End Up Living Very Different Lives
Photo by Waz Lght on UnsplashShareSubscribe nowGive a gift subscriptionIf you've taken an introductory psychology course, you'll have heard about general intelligence, also known as g. g is a general-purpose cognitive ability that's brought to bear on eve
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Blog 4 months ago
A Billion Years of Sex Differences: The Story So Far
ShareSubscribe nowGive a gift subscriptionTaking StockIt's been a month since I got back from the book tour for A Billion Years of Sex Differences, and I've finally had a chance to catch my breath and take stock of how things have gone. Overall, I've been
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Blog 4 months ago
What Do Your Favorite Movies Say About You?
Photo by Katie Mukhina on UnsplashShareSubscribe nowGive a gift subscriptionOur personality traits help determine which story elements we enjoy in movies. People high in openness prefer movies involving exploration, discovery, and intellectual debate; peo
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Blog 4 months ago
AI Cheating, Dating App Paradoxes, and Orangutan Playdates
Photo by Bob Brewer on UnsplashShareSubscribe nowGive a gift subscriptionWelcome to the July 2026 edition of the N3 Newsletter Linkfest: a collection of links to papers and articles that grabbed my attention over the last month. On the menu today…The clas
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