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Bret Beheim

@babeheim.bsky.social

cultural evolution, behavioral ecology, math models, data provenance, MOSAIC group leader @ Max Planck Institute for Evolutionary Anthropology + faculty at the Leipzig School of Human Origins https://babeheim.com/

2,887 Followers  |  2,453 Following  |  278 Posts  |  Joined: 03.07.2023
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Posts by Bret Beheim (@babeheim.bsky.social)

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I picked this up from a 7-11 in 2003 and think about it often

02.03.2026 17:02 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Come work with us! And get in touch with any questions you might have about the position, our labs or living/working in Germany #PostdocWanted

02.03.2026 12:36 β€” πŸ‘ 16    πŸ” 12    πŸ’¬ 0    πŸ“Œ 0

It's hard to communicate to non-USAians how deeply sad and upsetting today's actions by our government are. They were wrong in 2003 in Iraq, and they are wrong today. History will judge us all for this barbarity

28.02.2026 19:33 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Last day of February in Germany be like

28.02.2026 17:09 β€” πŸ‘ 5    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
microgpt Musings of a Computer Scientist.

a gpt in a sublime 200 lines of pure Python β€” it is all there. Incredible for teaching students (and yourself)

karpathy.github.io/2026/02/12/m...

27.02.2026 14:39 β€” πŸ‘ 35    πŸ” 8    πŸ’¬ 1    πŸ“Œ 2

There's always "Clan of the Cave Bear" if you want Neaderthal-human couplings, though that's even worse than ACOTAR

27.02.2026 08:14 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

I'm learning about hypergraphs now and am curious about this - is the joke that you can accomodate interaction effects in a DAG?

20.02.2026 22:54 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Just discovered an insane new form of co-intelligence where you briefly share the mind of a great thinker in history and then a portion of their mind travels in yours for the rest of your life. Calling it a "book."

11.12.2025 03:08 β€” πŸ‘ 821    πŸ” 183    πŸ’¬ 21    πŸ“Œ 22

the podcast radicalization gateway is real

12.02.2026 10:20 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Post image 07.02.2026 18:42 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Also RIP my German homies who still Luft every day (open up all their windows to let the relatively clean, warm air out to replace with filthy cold air)

06.02.2026 10:44 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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One of the few downsides about living in Leipzig (and eastern Europe more generally) is the absolutely atrocious air quality. Definitely regretting biking into work today....

06.02.2026 10:41 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 2    πŸ“Œ 0

I just read the declaration that Kira Kelley asked J. Blackwell to consider.
This immigrant describes being
-unlawfully arrested
-taken from one overcrowded & filthy prison to another over 19 days
-held incommunicado
& ICE never telling him a court ordered his release

He describes an American gulag

05.02.2026 05:52 β€” πŸ‘ 1246    πŸ” 505    πŸ’¬ 16    πŸ“Œ 22

as I'm revising my course materials, I keep stumbling upon cool @mc-stan.org developments.

Current favorites:
1. your model has funnels and you exhausted reparametrization ideas: metric = "dense_e" makes your HMC learn about covariance btw parameters. Sloooow, but effective!
1/

04.02.2026 13:30 β€” πŸ‘ 34    πŸ” 16    πŸ’¬ 2    πŸ“Œ 2
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My dog's post-surgery face is a pretty good signifier of the state of my household right now

04.02.2026 15:44 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Does literature evolve one funeral at a time? Abstract. The cultural evolution of literary fiction is rarely studied, but rich literary data can help address some of the general problems of cultural ch

I think Oleg and my paper from last year is a pretty nice combination of theory and big data for trendlines in a longitudinal corpus. It's not easy to identify exact mechanisms in observational, historical data, but we might be able to rule things out in a force-based approach

03.02.2026 21:24 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Today at the Leipzig Hauptbahnhof - a novel solution to the trolley problem

03.02.2026 09:57 β€” πŸ‘ 11    πŸ” 1    πŸ’¬ 3    πŸ“Œ 1
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It's one of the benefits of having teenagers - Hopplo charms are actually some of my daughter's best sellers in her crafting biz

31.01.2026 10:24 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

My personal fav is Scorbunny -> Hopplo

30.01.2026 18:44 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Schlurp
YouTube video by Spencer H Schlurp

My daughter tells me her favorite German pokemon is Lickitongue -> Schlurp

30.01.2026 18:21 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Very happy to see our ice-fishing paper on the cover of @science.org this week! πŸŽ£πŸŽ‰

We tracked large groups of Finnish competitive ice-fishers to study how social foragers use social information when searching for resources. 🐟

Link: www.science.org/doi/10.1126/... (contact me for open access)

30.01.2026 12:36 β€” πŸ‘ 94    πŸ” 42    πŸ’¬ 4    πŸ“Œ 2
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timeline is terrible, time for cozy office vibes

30.01.2026 16:12 β€” πŸ‘ 11    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Studying social transmission using STbayes Post provided by Michael Chimento. When studying animal culture, it’s important to establish whether novel behaviours or information have spread through social contact, or are rather innovated or p…

New blog post!!🚨

Michael Chimento gives an overview of the new R package STbayes, designed for creating, fitting and understanding Bayesian models of social transmission 🌍 πŸ§ͺ

Read the blog here πŸ‘‡

29.01.2026 12:02 β€” πŸ‘ 71    πŸ” 24    πŸ’¬ 0    πŸ“Œ 2
Why Risk it, When You Can {rix} it: A Tutorial for Computational Reproducibility Focused on Simulation Studies

Why Risk it, When You Can {rix} it: A Tutorial for Computational Reproducibility Focused on Simulation Studies

May be of interest to the reproducibility folks: New tutorial on computational reproducibility for simulation studies just dropped! felipelfv.github.io/Why-risk-it-...

by @felipefv.bsky.social, Jason Geller & @brodriguesco.bsky.social

28.01.2026 11:26 β€” πŸ‘ 63    πŸ” 17    πŸ’¬ 6    πŸ“Œ 0
GitHub - rmcelreath/stat_rethinking_2026: Statistical Rethinking Course 2026 Statistical Rethinking Course 2026. Contribute to rmcelreath/stat_rethinking_2026 development by creating an account on GitHub.

It's impressive to see how far things have come: github.com/rmcelreath/s...

28.01.2026 08:54 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Before it became REthinking, the course also had a pretty different take on Bayesian stats!

28.01.2026 08:54 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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There was no book yet, but we read from @bbolker.bsky.social "Ecological Models and Data in R" and of course Gelman and Hill

28.01.2026 08:52 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Some trivia to keep me off the newsfeeds - I remember when @rmcelreath.bsky.social's stats course was just called "Statistical Thinking"

28.01.2026 08:48 β€” πŸ‘ 6    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Voting NO on the DHS funding bill is the bare minimum.

Backing Kristi Noem’s impeachment is the bare minimum.

Holding law-breaking ICE agents legally accountable is the bare minimum.

ICE is beyond reform. Abolish it.

25.01.2026 21:59 β€” πŸ‘ 41797    πŸ” 10725    πŸ’¬ 728    πŸ“Œ 328