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🚨 Laws about bodily damage originate from shared intuitions about the value of body parts science.org/doi/10.1126/sc… New research by the great @YunsuhW, with Jaimie Arona Krems & me, in Science Advances 🧵

Happy to share my first paper, now out in Science Advances [science.org/doi/10.1126/sc…] Can human laws about bodily damage be traced to evaluative mechanisms in the mind-brain? We find cross-cultural and historical regularities in how laypeople and lawmakers appraise body parts.

Which BODY PART do *YOU* VALUE MOST? 🤲💪🏻🍆🦵🦶👄👂👃👀… New work led by Yunsuh Nike Wee (w Daniel Sznycer + me)👇

No. If you are a researcher, your primary goal should be research. Your research should absolutely involve informed consent but beyond that you are under no obligation to use your research to play savior. It's great if it has positive side-benefits, but that does not need to be

People don't like talking about taboos, but they like reading about them in secret🤫 Association for Psychological Science covers our taboos paper--the second most read across all APS journals in 2024--in their latest podcast: psychologicalscience.org/news/utc-2025-…

🚨Check out Yunsuh Nike Wee's FIRST pub--in Science Advances!!🚨 Where do laws about bodily damage come from? And here's our write-up in The Conversation U.S.: theconversation.com/an-eye-for-an-… (W Daniel Sznycer + me)

Tears paper with Asmir Gracanin & Deb Lieberman, now out E&HB. We explore game-theoretic logic of tearing, psychology behind tear production & response, & evidence for signaling hypothesis. 50-day link 👉 sciencedirect.com/science/articl… Unpaywalled 👉 drive.google.com/file/d/1Rg7_OI…

Fun fact: The evolved human psychology for computing the value of things sciencedirect.com/science/articl… can take as input objects, states of affairs, and actual and hypothetical events well outside the envelope of what it would have been exposed to ancestrally.

What are the differences between male and female friendships? Learn about them in my interview with Dr. Jaimie Krems (Jaimie Arona Krems). #evolutionarypsychology #Science Full interview: youtu.be/U6FDz4d6PNY

How does MEN's STATUS WORK? Ppl view physically 💪STRONG MEN💪as better able to: 1) enforce within-group norms (eg punish cheaters) 2) negotiate w other groups In turn, ppl confer status upon STRONG MEN BUT aggressive, self-interested strong men? They get no such benefits!!!

Why are WOMEN higher in NEUROTICISM? (Across cultures, they are.) Pre-reg'd tests in the US suggest the answer is, in part: PHYSICAL STRENGTH (women = less 💪) The sex difference in 💪 partially mediates the sex dif in Neurot* *Really HEXACO Emotionality, esp. FEARFULNESS

Out today in E&HB--- after nearly 40 YEARS--- "The evolution of war and its cognitive foundations" from Tooby + Cosmides Interested in the history + slow progress of science? 🚨Don't skip the Author's Note🚨 Link 👇

First Episode arrives May 20th. epthepod.podbean.com youtube.com/@EvolutionaryP…

Interested in 🤖 AI FRIENDS/ CHATBOTS ? 🤖 I talked about their (hidden) costs + some benefits in the National Journal Link to free article (ltd time)👇 nationaljournal.com/s/728495/compu… h/t Molly Smith (👀her PoPS pre-print: osf.io/preprints/psya… )

So the UCLA Center for Friendship Research is planning... 🥇 the FIRST🥇 FRIENDSHIP Conference for 2027 What would YOU like to see? Workshops? Public-facing talks? Typical symposia? Talk to me, Goose (but you all are cooler than Goose + also I'm Iceman, not Maverick)

There are more college courses about TAYLOR SWIFT than there are on HUMAN FRIENDSHIP Want to change that?

Fifth episode is up: Jaimie Arona Krems on friendship! youtu.be/fbrW4Hq0hFc?si… epthepod.podbean.com/e/friendship-w… podcasts.apple.com/us/podcast/evo…

Had a great time on the Game Changer podcast. We talked about Alliance Theory, plus a couple of up-and-coming projects I'm working on—one on the simple majority game and another on the evolutionary psychology of humor. open.spotify.com/episode/1w3075…

My NEW FAVE PODCAST: Real evolutionary social scientists talking about actual research (+ other weird stuff). I talked FRIENDSHIP with David Pietraszewski + David Pinsof.

What DRIVES 💋GOSSIP💋? In part, SELF INTEREST ~2500 Ps played a 3-stage economic game Players who'd been generous to others in a previous round gossiped that Players who'd been greedy withheld it---and spread DISHONEST gossip when it benefited them Link👇