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Posts by Jacob Peacock

Instead: "Please describe how you used LLMs in preparing your responses, with links to transcripts if applicable."

1 week ago 0 0 0 0

2. Requesting transcripts. Linking to a ChatGPT or Claude transcript is great—if you used that tool. Your best applicants are using extensions, skills, context and agents that won't meaningful appear in a transcript. And do you really want to read reams of transcript anyway?

1 week ago 0 0 1 0

Instead try: "The creative content of your responses must reflect your original writing, not that of an LLM. Answers closely resembling LLM outputs may be penalized."

1 week ago 0 0 1 0

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. 🧵

1 week ago 1 0 1 0
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Board Member - Animal Charity Evaluators We are seeking individuals with a sincere and passionate interest in animal advocacy to join our Board of Directors.

Final week to apply to join the Animal Charity Evaluators Board! Deadline March 1st.
animalcharityevaluators.org/about/our-te...

1 month ago 1 0 0 0
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Board Member - Animal Charity Evaluators We are seeking individuals with a sincere and passionate interest in animal advocacy to join our Board of Directors.

@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...

2 months ago 0 0 0 0
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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…

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...

2 months ago 4 0 0 0

Lastly, here's the new citation: Peacock, J. R. (2026). Price-, taste-, and convenience-competitive plant-based meat analogues would not currently replace the majority of meat consumption: A narrative review. Appetite, 216, 108301. doi.org/10.1016/j.appet.2025.108301

7 months ago 1 0 0 0

The new section reviews recent literature which "suggested that decreased plant-based meat, butter and milk analogue prices might cause increased consumption of the corresponding animal product" and moving plant-based meat analogues to the meat aisle didn't meaningfully effect meat consumption

7 months ago 0 0 1 0

So, what's new?
✅ Shorter
✅ More and updated citations
✅ Methods section
✅ Error bars in figures
✅ New section, "Studies of price and convenience manipulations individually"

7 months ago 0 0 1 0
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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…

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

7 months ago 3 0 1 0
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enstucky - Twitch Math Twitch 📺 Unofficial #SoME4 Review-A-Thon Relay! 🔀 !whatsup !rubric !pronouns !music

Going live here shortly: www.twitch.tv/enstucky

7 months ago 1 0 0 0
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3Blue1Brown - The Summer of Math Exposition Announcement for the SoME1 Competition

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

7 months ago 1 0 0 0

with @jessica-hope.bsky.social, @setgree.bsky.social, and Maya Mathur

7 months ago 0 0 0 0
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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

7 months ago 1 0 1 1

I share your frustration. In live action media, I assume humanoid aliens with additive features reflect limitations of practical effects. But animated works especially tend to have nonsense biology and especially biomechanics. And CGI gives us human clone troopers with impossibly narrow helmets...

8 months ago 1 0 1 0

High-impact opportunity at Greener By Default for someone with great Python and data analysis skills www.linkedin.com/jobs/view/42...

8 months ago 0 0 0 0
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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.

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...

10 months ago 2 0 0 0
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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.

Check out these two brand-new animal advocacy Substacks by Rethink Priorities and Seth Green:

rpstrategicanimalinsights.substack.com
regressiontothemeat.substack.com

11 months ago 2 0 0 0
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Traditional And Contemporary meat Options Study 1 (TACOS-1) Hypothetical-choice pilot experiment Our project seeks to understand the purchasing behavior of consumers faced with a choice of animal-based meat and between one and three plant-based alternatives.…

One PB option brings that down to 84%, two options 78% and a third option just 75%. This definitely surprised me...I thought 3 options would have a larger effect.

We have a similar study pre-registered here osf.io/z9486%E2%80%... update your priors and start forecasting our results!

1 year ago 1 0 0 0

This metric moderately favors PB meat burger, although note wide CIs.

One last notable result: simulating counterfactuals suggested adding PB options quickly reaches diminishing returns. With no PB options, 92% of participants chose beef (the rest wouldn't buy).

1 year ago 1 0 1 0

Third col shows the market share of beef in a simulated two-item market with one of the 3 alternatives; the PB meat burger was slightly worse here. But, in col 4, the effect of reducing the alternative price by 1% on market share of beef (cross-price elasticity).

1 year ago 1 0 1 0

(Ranges are 95% CIs; I used point estimates where CIs weren't reported.) Estimated market shares of the four products competing at equal prices told slightly different stories in Studies 1 & 2, but the takeaway is that the alternatives probably performed about the same.

1 year ago 0 0 1 0
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(and enables a "counterfactual estimation" as if some options weren't available, although I'm somewhat skeptical of this approach).

Results updated me a bit: while I thought the falafel or veggie burger might come out slightly ahead, it wasn't decisive across 4 different measures:

1 year ago 0 0 1 0

After a choose-one (discrete choice) question, participants were asked a clever follow-up: suppose that option was out of stock, what would you get instead? This seems like a cheap way to get participants to rank options and thus more sensitivity from a single study

1 year ago 1 0 1 0

These span the gamut from analog to semi-analog to non-analog plant-based alternatives to meat. After a choose-one (discrete choice) question, participants were asked a clever follow-up: suppose that option was out of stock, what would you get instead?

1 year ago 0 0 1 0

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.

1 year ago 6 1 1 0
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Thanks, enjoyed this!

1 year ago 1 0 0 0
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Contractor - Corporate Data and Intelligence - Remote - Indeed.com Mercy For Animals

Great opportunity to join the Data & Analytics team at @mercyforanimals.org www.indeed.com/viewjob?jk=f...

1 year ago 1 0 0 0
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Senior Researcher in the Animal Welfare Department Job Opening: Senior Researcher in the Animal Welfare Department at Rethink Priorities in Remote.

Exciting to see an opportunity to join Rethink Priorities' Animal Welfare dept: bit.ly/rpawsrr

1 year ago 1 1 0 0