Jean-Baptiste André

@jbaptistandre.bsky.social

Evolutionary biologist studying human behavior and societies through adaptationist reasoning. DR CNRS @ Ecole Normale Supérieure-PSL & Institut Jean Nicod.

Why do societies rely on rigid moral rules? Don't lie. Keep your promises. Don't steal. We all recognize there are good reasons to make exceptions. So why are moral rules so often categorical? Our new paper proposes an answer. 🧵

Screenshot of article title page, "Why human societies adopt rigid moral rules"

🧵 1/4 Last year, Nicolas Baumard and I published a target article in EHB, where we propose that cultural phenomena emerge from feedbacks between evolved psychology and ecological legacies, the same mechanisms at work in any ecosystem: www.sciencedirect.com/science/arti...

The ecological approach to culture

The prevailing view in the literature treats cultural dynamics as fundamentally distinct from other ecological processes—governed by a second system o…

sciencedirect.com

🚨𝗔𝘁𝘁𝗲𝗻𝘁𝗶𝗼𝗻 𝗲𝘃𝗼𝗹𝘂𝘁𝗶𝗼𝗻 𝗲𝗻𝘁𝗵𝘂𝘀𝗶𝗮𝘀𝘁𝘀! www.ehbea2026.com is now live for our 2026 European Human Behaviour & Evolution Association (EHBEA) conference in Leiden (NL🇳🇱) Check for 𝗮𝗯𝘀𝘁𝗿𝗮𝗰𝘁 𝘀𝘂𝗯𝗺𝗶𝘀𝘀𝗶𝗼𝗻, first 𝗽𝗹𝗲𝗻𝗮𝗿𝗶𝗲𝘀 & the [𝗔𝗜]𝘃𝗼𝗹𝘂𝘁𝗶𝗼𝗻 𝘁𝗵𝗲𝗺𝗲 𝘁𝗿𝗮𝗰𝗸! 🗓️ 14–17 Apr 2026 | CBEN pre-conf 14 Apr 📍Pesthuis #EHBEA2026

Overview | EHBEA2026

ehbea2026.com

EHBEA is looking for new PRESIDENT and SECRETARY for 2026-2029! 👀 If you know of anybody who could represent EHBEA, nominate them as president! If you know with good organisational skills, nominate them as secretary! DEADLINE: 16/12/2026 HERE IS THE FORM 👇 docs.google.com/document/d/1...

EHBEACommitteeNominationForm_Pres_Sec.doc

EHBEA Committee 2026-2029: Nomination Form The EHBEA Steering Committee is calling for nominations for the following open committee positions for 2026-2029. You are invited to nominate one or more c...

docs.google.com

📢 Apply to our (2-year) research fellowships at @iast.fr Join a multidisciplinary, interdisciplinary, transdisciplinary, and indisciplinary group of scholars in Toulouse, walkable/cyclable pink city of chocolatines in the South of France. Deadline: November 15, 2025. www.iast.fr/research-fel...

Research Fellowships

Each year, IAST invites applications for post-doctoral Research Fellowships, which offer candidates an opportunity to devote themselves full-time to their research at the start of their careers. Fello...

iast.fr

Here, weird guy from X, I fixed it for you: "If a scientific society wants to be welcoming to [...] students & researchers [from the Global South], does it make sense to hold its next annual conference in a country that's notorious for [being located in the Global South]?" The answer is Yes.

I think the BabyLM Challenge is really interesting, but also feel that there is something fundamentally ill-posed about how it maps onto the challenge facing human children. It's true that babies only get a relatively limited amount of linguistic experience, but...

The Transmitter @thetransmitter.bsky.social · last yr.

Alona Fyshe @alonaf.bsky.social on the BabyLM Challenge, a competition that trains language models (LMs) on smaller datasets, more akin to how a baby learns, in search of solutions to some of the major challenges of today’s LLMs. #NeuroAI #neuroskyence www.thetransmitter.org/neuroai/the-...