Jorge Peña
@jorgeapenas.bsky.social
Professor of Interdisciplinary Stuff @ Department of Social and Behavioral Sciences, Toulouse School of Economics (TSE), and Institute for Advanced Study in Toulouse (IAST).
Mathematical models of cooperation and conflict.
https://jorgeapenas.github.io
Mathematical models of cooperation and conflict.
https://jorgeapenas.github.io
Reposted by Jorge Peña
New on the arxiv:
“Graphs are maximally expressive for higher-order interactions”
arxiv.org/abs/2602.16937
We clarify central misconceptions in the recent literature on "higher-order networks".
w/ @piratepeel.bsky.social , @manlius.bsky.social, and @thilogross.bsky.social
Explainer 🧵: 1/N
“Graphs are maximally expressive for higher-order interactions”
arxiv.org/abs/2602.16937
We clarify central misconceptions in the recent literature on "higher-order networks".
w/ @piratepeel.bsky.social , @manlius.bsky.social, and @thilogross.bsky.social
Explainer 🧵: 1/N
Graphs are maximally expressive for higher-order interactions
We demonstrate that graph-based models are fully capable of representing higher-order interactions, and have a long history of being used for precisely this purpose. This stands in contrast to a commo...
arxiv.org
February 20, 2026 at 8:04 AM
New on the arxiv:
“Graphs are maximally expressive for higher-order interactions”
arxiv.org/abs/2602.16937
We clarify central misconceptions in the recent literature on "higher-order networks".
w/ @piratepeel.bsky.social , @manlius.bsky.social, and @thilogross.bsky.social
Explainer 🧵: 1/N
“Graphs are maximally expressive for higher-order interactions”
arxiv.org/abs/2602.16937
We clarify central misconceptions in the recent literature on "higher-order networks".
w/ @piratepeel.bsky.social , @manlius.bsky.social, and @thilogross.bsky.social
Explainer 🧵: 1/N
Reposted by Jorge Peña
“Humans across multiple languages spontaneously associate the nonwords kiki & bouba with spiky & round shapes, respectively...We tested the bouba-kiki effect in baby chickens. Similar to humans, they spontaneously chose a spiky shape when hearing a kiki sound & a round shape when hearing a bouba.”😲🧪
Matching sounds to shapes: Evidence of the bouba-kiki effect in naïve baby chicks
Humans across multiple languages spontaneously associate the nonwords “kiki” and “bouba” with spiky and round shapes, respectively, a phenomenon named the bouba-kiki effect. To explore the origin of t...
www.science.org
February 19, 2026 at 7:20 PM
“Humans across multiple languages spontaneously associate the nonwords kiki & bouba with spiky & round shapes, respectively...We tested the bouba-kiki effect in baby chickens. Similar to humans, they spontaneously chose a spiky shape when hearing a kiki sound & a round shape when hearing a bouba.”😲🧪
Reposted by Jorge Peña
Humans exhibit an astonishing variety of marriage systems. Sometimes monogamous, other times polygamous, occasionally we even marry ghosts. The diversity can seem to defy any general explanation. In my new piece for Works in Progress, I write about the Darwinian logic behind it. 1/
The market for marriage - Works in Progress Magazine
It is a truth universally acknowledged, that a single man in possession of a good agricultural surplus, must be in want of a wife.
worksinprogress.co
February 19, 2026 at 4:10 PM
Humans exhibit an astonishing variety of marriage systems. Sometimes monogamous, other times polygamous, occasionally we even marry ghosts. The diversity can seem to defy any general explanation. In my new piece for Works in Progress, I write about the Darwinian logic behind it. 1/
Reposted by Jorge Peña
President Milei tweets a slogan that he meant to be a play on words meaning "Milei doesnt support the [General] Strike"
But written in a way that literally means;
"Milei cannot get an erection"
Help. I cant breathe 😅
But written in a way that literally means;
"Milei cannot get an erection"
Help. I cant breathe 😅
February 19, 2026 at 3:26 PM
President Milei tweets a slogan that he meant to be a play on words meaning "Milei doesnt support the [General] Strike"
But written in a way that literally means;
"Milei cannot get an erection"
Help. I cant breathe 😅
But written in a way that literally means;
"Milei cannot get an erection"
Help. I cant breathe 😅
Now go for the rest of the family. www.theguardian.com/uk-news/2026...
Andrew Mountbatten-Windsor arrested on suspicion of misconduct in public office
King expresses his ‘deepest concern’ and says ‘law must take its course’ as former prince arrested at Sandringham estate
www.theguardian.com
February 19, 2026 at 12:27 PM
Now go for the rest of the family. www.theguardian.com/uk-news/2026...
Reposted by Jorge Peña
I just did the dumbest thing of my entire career to prove a much more serious point.
I tricked ChatGPT and Google, and made them tell other users I’m a competitive hot-dog-eating world champion
People are using this trick on a massive scale to make AI tell you lies. I’ll explain how I did it
I tricked ChatGPT and Google, and made them tell other users I’m a competitive hot-dog-eating world champion
People are using this trick on a massive scale to make AI tell you lies. I’ll explain how I did it
February 18, 2026 at 4:37 PM
I just did the dumbest thing of my entire career to prove a much more serious point.
I tricked ChatGPT and Google, and made them tell other users I’m a competitive hot-dog-eating world champion
People are using this trick on a massive scale to make AI tell you lies. I’ll explain how I did it
I tricked ChatGPT and Google, and made them tell other users I’m a competitive hot-dog-eating world champion
People are using this trick on a massive scale to make AI tell you lies. I’ll explain how I did it
Reposted by Jorge Peña
New Perspective!🔥It's fascinating how scientists from different fields but interested in the same question [e.g. genotype-phenoytpe relationship] can have such different perspectives. Here we put in our 2 cents wrt genetic effects being context-dependent, and pheno variation being mostly polygenic
Beyond Mendel: a call to revisit the genotype–phenotype map through new experimental paradigms
Abstract. The long-standing notion that genotypes map to phenotypes through simple one gene–one trait relationships continues to shape both research in the
academic.oup.com
February 18, 2026 at 9:55 AM
New Perspective!🔥It's fascinating how scientists from different fields but interested in the same question [e.g. genotype-phenoytpe relationship] can have such different perspectives. Here we put in our 2 cents wrt genetic effects being context-dependent, and pheno variation being mostly polygenic
I stood up from my desk and went to look for my copy of One Hundred Years of Solitude, which surely was on my bookshelf, only to realize I don't actually own one.
February 18, 2026 at 6:40 PM
I stood up from my desk and went to look for my copy of One Hundred Years of Solitude, which surely was on my bookshelf, only to realize I don't actually own one.
Reposted by Jorge Peña
Travel grants 📣
For the 13th Toulouse Economics & Biology Workshop (June 1–2, 2026, @IAST) we have travel fellowships for PhDs & early-career researchers presenting a poster. Apply by Feb 27! Details: www.iast.fr/conferences/...
For the 13th Toulouse Economics & Biology Workshop (June 1–2, 2026, @IAST) we have travel fellowships for PhDs & early-career researchers presenting a poster. Apply by Feb 27! Details: www.iast.fr/conferences/...
February 18, 2026 at 1:20 PM
Travel grants 📣
For the 13th Toulouse Economics & Biology Workshop (June 1–2, 2026, @IAST) we have travel fellowships for PhDs & early-career researchers presenting a poster. Apply by Feb 27! Details: www.iast.fr/conferences/...
For the 13th Toulouse Economics & Biology Workshop (June 1–2, 2026, @IAST) we have travel fellowships for PhDs & early-career researchers presenting a poster. Apply by Feb 27! Details: www.iast.fr/conferences/...
Reposted by Jorge Peña
The Selfish Gene (TSG) was published 50 yrs ago. I was recently asked about Dawkins' concep of the selfish gene in light of my review many years ago of Burt & Trivers' book on selfish genetic elements: www.science.org/doi/10.1126/...
Here is my response (lightly edited): 🧪 #BioAnth 1/14
Here is my response (lightly edited): 🧪 #BioAnth 1/14
February 17, 2026 at 5:03 PM
The Selfish Gene (TSG) was published 50 yrs ago. I was recently asked about Dawkins' concep of the selfish gene in light of my review many years ago of Burt & Trivers' book on selfish genetic elements: www.science.org/doi/10.1126/...
Here is my response (lightly edited): 🧪 #BioAnth 1/14
Here is my response (lightly edited): 🧪 #BioAnth 1/14
Don't utilize "utilize". Use "use".
February 17, 2026 at 12:59 PM
Don't utilize "utilize". Use "use".
A new residence permit, this one granting me 3 more years in a foreign country. How many have I been granted in the last 21 years? If the first section of my CV were a list of all my residence permit titles, it would easily span two full pages.
February 17, 2026 at 9:50 AM
A new residence permit, this one granting me 3 more years in a foreign country. How many have I been granted in the last 21 years? If the first section of my CV were a list of all my residence permit titles, it would easily span two full pages.
Reposted by Jorge Peña
Tom Van Dooren and I are organising a symposium on "Advances in theoretical evo-devo" at the next Euro Evo Devo meeting in Glasgow. Invited speakers: @n-martin.bsky.social, Nayely Vélez-Cruz, Thomas Hansen & Günter Wagner. Consider submitting an abstract, now open! www.evodevoconference26.com
10th European Society for Evolutionary Developmental Biology Meeting 2026
The European Society for Evolutionary Developmental Biology is delighted to welcome you to the 10th biennial meeting, to be held at the University of Glasgow from June 9th - 12th in 2026.
www.evodevoconference26.com
February 17, 2026 at 8:56 AM
Tom Van Dooren and I are organising a symposium on "Advances in theoretical evo-devo" at the next Euro Evo Devo meeting in Glasgow. Invited speakers: @n-martin.bsky.social, Nayely Vélez-Cruz, Thomas Hansen & Günter Wagner. Consider submitting an abstract, now open! www.evodevoconference26.com
Reposted by Jorge Peña
Trivers gave a talk at UT Austin >10 years ago, in which he started by commenting on the good looking female graduate students in the department. He's been a creep for a long time.
February 16, 2026 at 8:26 PM
Trivers gave a talk at UT Austin >10 years ago, in which he started by commenting on the good looking female graduate students in the department. He's been a creep for a long time.
Jikipedia, the Jmail Encyclopedia, "the encyclopedia of people, places, and events from the Epstein scandal—grounded in Jmail data. AI-generated from government-released emails and documents".
jmail.world/wiki
jmail.world/wiki
The Jmail Encyclopedia
The Jmail Encyclopedia — AI-generated encyclopedia of the Epstein scandal, grounded in Jmail data. People, places, and events from government-released emails and documents. A supplement to Wikipedia.
jmail.world
February 15, 2026 at 6:12 PM
Jikipedia, the Jmail Encyclopedia, "the encyclopedia of people, places, and events from the Epstein scandal—grounded in Jmail data. AI-generated from government-released emails and documents".
jmail.world/wiki
jmail.world/wiki
Reposted by Jorge Peña
Jikipedia turns Epstein’s emails into an encyclopedia of the his powerful friends
Jikipedia turns Epstein’s emails into an encyclopedia of the his powerful friends
AI-generated dossiers from the Jmail team.
buff.ly
February 14, 2026 at 10:40 PM
Jikipedia turns Epstein’s emails into an encyclopedia of the his powerful friends
Charles Darwin is not in the Epstein files. Happy Darwin's day!
February 12, 2026 at 3:28 PM
Charles Darwin is not in the Epstein files. Happy Darwin's day!
Reposted by Jorge Peña
I have a new paper. We look at ~all stats articles in political science post-2010 & show that 94% have abstracts that claim to reject a null. Only 2% present only null results. This is hard to explain unless the research process has a filter that only lets rejections through.
February 11, 2026 at 5:00 PM
I have a new paper. We look at ~all stats articles in political science post-2010 & show that 94% have abstracts that claim to reject a null. Only 2% present only null results. This is hard to explain unless the research process has a filter that only lets rejections through.
Reposted by Jorge Peña
"The academic structure … makes planning for a family feel like an impossible luxury."
In this #ScienceWorkingLife, two postdocs share how, as women in academia, having children can feel impossible—and how talking about it makes them feel less alone. https://scim.ag/46uBWgD #WomenInScienceDay
In this #ScienceWorkingLife, two postdocs share how, as women in academia, having children can feel impossible—and how talking about it makes them feel less alone. https://scim.ag/46uBWgD #WomenInScienceDay
February 11, 2026 at 8:06 PM
"The academic structure … makes planning for a family feel like an impossible luxury."
In this #ScienceWorkingLife, two postdocs share how, as women in academia, having children can feel impossible—and how talking about it makes them feel less alone. https://scim.ag/46uBWgD #WomenInScienceDay
In this #ScienceWorkingLife, two postdocs share how, as women in academia, having children can feel impossible—and how talking about it makes them feel less alone. https://scim.ag/46uBWgD #WomenInScienceDay
"I admit that it can feel tedious to push back on the arrogance of using “American” only to describe the US. Who wants to be the wet blanket in a US newsroom who reminds everyone that America is an entire hemisphere?"
www.theguardian.com/music/2026/f...
www.theguardian.com/music/2026/f...
At the Super Bowl, Bad Bunny challenged the meaning of ‘America’
The Puerto Rican star’s vision of American identity moved beyond colonial tropes to span an entire hemisphere
www.theguardian.com
February 10, 2026 at 3:38 PM
"I admit that it can feel tedious to push back on the arrogance of using “American” only to describe the US. Who wants to be the wet blanket in a US newsroom who reminds everyone that America is an entire hemisphere?"
www.theguardian.com/music/2026/f...
www.theguardian.com/music/2026/f...
Reposted by Jorge Peña
bad bunny tonight at the super bowl :
February 9, 2026 at 1:42 AM
bad bunny tonight at the super bowl :
Reposted by Jorge Peña
Happy Bad Bunny Day! ✊💚🐰
February 9, 2026 at 6:36 PM
Happy Bad Bunny Day! ✊💚🐰
After Bad Bunny's halftime show yesterday, can we finally stop using "America" to mean the US and "Americans" to mean people from the US exclusively? Thank you.
February 9, 2026 at 10:53 AM
After Bad Bunny's halftime show yesterday, can we finally stop using "America" to mean the US and "Americans" to mean people from the US exclusively? Thank you.
Reposted by Jorge Peña
Bad Bunny shouts “God Bless America” and then lists all the countries that actually ARE American (not just the one with the people that call themselves Americans), including Canada. #BadBunny #SuperBowl
Bad Bunny shows love to all the Latin flags and shouts out Canada!🇨🇦
YouTube video by The Brandon Gonez Show
youtube.com
February 9, 2026 at 6:15 AM
Bad Bunny shouts “God Bless America” and then lists all the countries that actually ARE American (not just the one with the people that call themselves Americans), including Canada. #BadBunny #SuperBowl
Democracy Dies in Lightness.
February 9, 2026 at 9:24 AM
Democracy Dies in Lightness.
