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Jacob Peacock

@jacobpeacock.bsky.social
847 followers 108 following 46 posts

Research Advisor at Stanford focused on improving animal welfare. Quantitative social scientist & ex-computational biologist. Open science and anti-speciesism. Views mine.

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Jacob Peacock @jacobpeacock.bsky.social · 23/06/2026
Predict the future for animals and win $3,400. My tip: 7% chance of US plant-based meat reaching 10% marketshare by 2031 is too high sadly... www.metaculus.com/tournament/3...
metaculus.com
Animal Futures Tournament
Every day, billions of animals suffer in ways we can prevent, but only if we direct our resources wisely. The people working to reduce that suffering face hard questions with thin evidence: which…
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Jacob Peacock @jacobpeacock.bsky.social · 19/06/2026
Careful, mechanistic thinking re:effects of AI on cultivated meat: rethinkpriorities.org/research-are... I enjoyed consulting as an expert reviewer on this report. If your work would benefit from thoughtful, critical and and speedy technical review, please reach out!
rethinkpriorities.org
AI and Cultivated Meat
Unpacking the near-term impacts of AI on the commercial viability of cultivated meat.
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Jacob Peacock @jacobpeacock.bsky.social · 14/04/2026
I see two LLM policy mistakes in hiring processes all the time: 1. Total ban on LLMs. Using an LLM for spellchecking, searching your own past writing for reference, or answering factual experience questions should absolutely be permissible. 🧵
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Jacob Peacock @jacobpeacock.bsky.social · 24/02/2026
Final week to apply to join the Animal Charity Evaluators Board! Deadline March 1st. animalcharityevaluators.org/about/our-te...
animalcharityevaluators.org
Board Member - Animal Charity Evaluators
We are seeking individuals with a sincere and passionate interest in animal advocacy to join our Board of Directors.
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Jacob Peacock @jacobpeacock.bsky.social · 09/02/2026
@animalcharityev.bsky.social is looking for new board members! Join me and a talented group of leaders to guide ACE's work to identify highly cost-effective animal charities. Apply by March 1st. animalcharityevaluators.org/about/our-te...
animalcharityevaluators.org
Board Member - Animal Charity Evaluators
We are seeking individuals with a sincere and passionate interest in animal advocacy to join our Board of Directors.
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Jacob Peacock @jacobpeacock.bsky.social · 30/01/2026
Made my first podcast appearance on The Vegan Report, hosted by Rayane Laddi. Seth Green and I talk AI, MAHA, nudges, social desirability bias, and more: rss.com/podcasts/veg...
rss.com
2025 Highlights: AI, MAHA, Vegan Nudges, Cultivated Meat | Science of Activism | Podcast Episode on RSS.com
For today, a group conversation with two research scientists from Stanford University's Humane and Sustainable Food Lab: Seth Ariel-Greene and Jacob PeacockWe discussed some of 2025 news and trends…
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Jacob Peacock @jacobpeacock.bsky.social · 22/09/2025
My paper "Price-, taste-, and convenience-competitive plant-based meat analogues would not currently replace the majority of meat consumption: A narrative review" is now published in the peer-reviewed journal Appetite! Available here: shorturl.at/nMk2R
doi.org
Price-, taste-, and convenience-competitive plant-based meat analogues would not currently replace the majority of meat consumption: A narrative review
Plant-based meat analogues, like Beyond Sausage or Impossible Burger, have become a source of optimism for environmental, public health, and animal we…
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Jacob Peacock @jacobpeacock.bsky.social · 16/09/2025
Going live here shortly: www.twitch.tv/enstucky
twitch.tv
enstucky - Twitch
Math Twitch 📺 Unofficial #SoME4 Review-A-Thon Relay! 🔀 !whatsup !rubric !pronouns !music
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Jacob Peacock @jacobpeacock.bsky.social · 16/09/2025
A bit last minute, but if you're free 4-6p tonight, come watch me judge submissions for Summer of Math Exposition, a sorta-annual competition held by famed math youtuber @3blue1brown.com, at twitch.tv/enstucky More info on the competition here: www.3blue1brown.com/blog/some1
3blue1brown.com
3Blue1Brown - The Summer of Math Exposition
Announcement for the SoME1 Competition
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Jacob Peacock @jacobpeacock.bsky.social · 09/09/2025
Does adding plant-based meat to the @chipotle menu cause less meat purchasing? Our preregistered RCT (N=4,431) using a simulated food order suggests not. Neither adding sofritas PBM nor an additional hypothetical chicken-like PBM meaningfully reduced meat consumption: Full study: osf.io/z6rn2_v1
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Jacob Peacock @jacobpeacock.bsky.social · 23/07/2025
High-impact opportunity at Greener By Default for someone with great Python and data analysis skills www.linkedin.com/jobs/view/42...
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Jacob Peacock @jacobpeacock.bsky.social · 27/05/2025
Fresh out of college, I designed binary classifiers and sentiment analysis tools for a marketing start-up. ~10 years later, off-the-shelf LLMs would easily replace and exceed what I did. Wild to read how much LLMs disrupted natural language processing www.quantamagazine.org/when-chatgpt...
quantamagazine.org
When ChatGPT Broke an Entire Field: An Oral History | Quanta Magazine
Researchers in “natural language processing” tried to tame human language. Then came the transformer.
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Jacob Peacock @jacobpeacock.bsky.social · 22/05/2025
Check out these two brand-new animal advocacy Substacks by Rethink Priorities and Seth Green: rpstrategicanimalinsights.substack.com regressiontothemeat.substack.com
regressiontothemeat.substack.com
regressiontothemeat | Seth Ariel Green | Substack
Reporting (and commenting!) on research aimed at reducing meat consumption. Click to read regressiontothemeat, by Seth Ariel Green, a Substack publication. Launched 7 days ago.
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Jacob Peacock @jacobpeacock.bsky.social · 24/03/2025
Catching up on some new plant-based meat literature with "Substitution patterns and price response for plant-based meat alternatives." www.pnas.org/doi/10.1073/... In two studies, participants hypothetically chose from 4 burger patties: beef, plant-based meat, veggie or falafel.
pnas.org
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Jacob Peacock @jacobpeacock.bsky.social · 19/03/2025
Great opportunity to join the Data & Analytics team at @mercyforanimals.org www.indeed.com/viewjob?jk=f...
indeed.com
Contractor - Corporate Data and Intelligence - Remote - Indeed.com
Mercy For Animals
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Jacob Peacock @jacobpeacock.bsky.social · 10/03/2025
Exciting to see an opportunity to join Rethink Priorities' Animal Welfare dept: bit.ly/rpawsrr
bit.ly
Senior Researcher in the Animal Welfare Department
Job Opening: Senior Researcher in the Animal Welfare Department at Rethink Priorities in Remote.
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Jacob Peacock @jacobpeacock.bsky.social · 14/12/2024
If you just can't get enough of me talking about this work, here's a recording of our CARE conference panel with @chrisbryantphd.bsky.social and Ignacia Uribe m.youtube.com/watch?v=1FSK...
m.youtube.com
CARE 2024 | Plant-based Sessions: Panel Discussion – Why your theory of change doesn’t work
YouTube video by CARE: Conference on Animal Rights in Europe
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Jacob Peacock @jacobpeacock.bsky.social · 02/12/2024
Highly recommend www.sky-follower-bridge.dev/get-started.... for automatically transferring your twitter follows to BlueSky
sky-follower-bridge.dev
Sky Follower Bridge
Instantly find and follow the same users from your 𝕏 followers on Bluesky
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Jacob Peacock @jacobpeacock.bsky.social · 02/12/2024
Now with video recording! www.youtube.com/watch?v=qPFk...
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Jacob Peacock @jacobpeacock.bsky.social · 18/11/2024
Thank you to all the organizers of EAGxVirtual for a great conference! I gave a talk on my paper "Price-, Taste-, and Convenience-Competitive Plant-Based Meat Would Not Currently Replace Meat" Slides: docs.google.com/presentation... Paper: forum.effectivealtruism.org/posts/iukeBP...
forum.effectivealtruism.org
Price-, Taste-, and Convenience-Competitive Plant-Based Meat Would Not Currently Replace Meat — EA Forum
Updated October 25, 2023 • Executive summary Plant-based meats, like the Beyond Sausage or Impossible Burger, and cultivated meats have become a sou…
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