Why do human societies adopt rigid moral rules? People often have legitimate reasons for failing to cooperate, yet those reasons are often opaque, allowing opportunists to disguise selfishness as justified hardship. Rigidity preserves cooperation when trust is fragile www.pnas.org/doi/10.1073/...

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If someone offers me a seat on a rocket ship, I won't ask which seat. I'll ask whether the people who made the ship have put any thought into making sure it doesn't explode.

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The call for the PhD programme in Sociology and Social Research at Trento is out, with deadline 14 May. Interested in a PhD in cultural evolution / social media / cultural analytics? Get in touch! www.unitn.it/en/phd/socio...

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I am happy to share this new preprint with Yuxuan Zhao, Kaisheng Zhu, and Yefei Zhang on Pattern Formation in a Spatial Public Goods Dilemma due to Diffusive or Directed Motion. arxiv.org/abs/2603.21025

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Very excited to share our latest article in Trends in Microbiology, with @ninan-abraham.bsky.social, @chilbe.bsky.social, @ayesha-mahmud.bsky.social, and Arne Traulsen! We highlight the importance of disentangling these interactions and suggest potential paths forwards

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