3etter @3etterorg.bsky.social A nonprofit building simple projects for a better world.
John Matthews @scribejohn.bsky.social Jewish-Irish bestselling author of 24 books - RH/Penguin & Harper-Collins - mostly crime-thrillers. And journalist: The Times, Newsweek, The Spectator. One of fastest growing substacks on Israel-Palestine. No DMs unless already Substack subscribed. 
Recurse Center @recurse.com The retreat for curious programmers.
Work at the edge of your abilities, develop your volitional muscles, and learn generously.
📝 Applications are open!
🔗 https://www.recurse.com/
📍NYC | Online
Alt18F @alt18f.bsky.social Delivered effective, efficient, and secure digital services for the American people until we were forced to stop on March 1, 2025. Not an official government account. Reposts are not endorsements. Our new website: https://18f.org/ #AltGov
WeMove Europe @wemoveeurope.bsky.social A people-powered community, campaigning for a more equal, sustainable and democratic Europe 🌍✊🌈🌱🗳️
Soemano Zeijlmans @soemanozeijlmans.eu 💊 Welfare-pilled utility maxxer
🔍 Environmental economist building a better world with evidence instead of vibes.
💚 Research Associate at @GivingGreen.earth
🌍 Co-director of @EffectiveEnvironmentalism.org
🎒 Offbeat travel, nature, connections.
🏃♂️ Running
Effective Environmentalism @effectiveenvironmentalism.org 💡💚 We're growing a movement around tackling climate change and environmental challenges as effectively as possible, based on evidence, careful analysis, and science. Join us!
Find opportunities: www.effectiveenvironmentalism.org
Alex Holst @alexholst.bsky.social Focused on creating a more sustainable, healthy, and just food system.
EU policy & politics at the Good Food Institute Europe.
Vegard Beyer @vegardbeyer.bsky.social Climate crisis, strategy, organizing, screenwriting, making a better world. Co-Founder https://future-matters.org, Co-Founder @re-plot.bsky.social. Views my own.
James Ozden @jamesozden.bsky.social Founder of socialchangelab.org, doing social movement research. Previously organising grassroots climate & animal advocacy movements.
Now working in philanthropy to help end factory farming.
Rowan Emslie @rowanemslie.bsky.social CCO at the Centre for Future Generations. Previously Clean Air Task Force and Edelman BXL. Hertie School alum.
The Good Food Institute @gfi.org We unlock the knowledge and resources needed to transform how meat is made—satisfying rising food demand in ways that accelerate climate progress, protect animals & ecosystems, and strengthen public health.
https://linktr.ee/the_good_food_institute
Giving Green @givinggreen.earth We make high-impact climate giving easier, for everyone.
Sign up for our monthly newsletter: http://eepurl.com/hIqAVj
Repost ≠ endorsement.
Our recs for 2024-2025 climate giving: givinggreen.earth/post/2024-top-nonprofits
Clean Air Task Force @cleanaircatf.bsky.social Catalyzing resilient solutions for a cleaner future.
Ayuda Efectiva @ayudaefectiva.bsky.social Ayuda Efectiva selecciona y financia los programas benéficos que, con un mismo coste, ayudan más a más personas. Infórmate y multiplica tu impacto.
emily thai @ethai.bsky.social they/she // @donororganizerhub.org // opinions mine, strong, weakly held
Mieux Donner @handle.invalid En orientant vos dons là où ils peuvent faire une grande différence, vous pouvez avoir un impact extraordinaire !
Rendez-vous sur notre site web https://mieuxdonner.org/ pour en apprendre plus sur la générosité efficace
emily 🔹 @emily.fan https://emily.fan
GiveDirectly @give-directly.bsky.social Send money to people living in poverty, no strings attached. In Bangladesh, DRC, Kenya, Liberia, Malawi, Mozambique, Morocco, Nigeria, Rwanda, Uganda, & U.S.
Peter Singer @petersinger.info Author, Animal Liberation, Practical Ethics, The Life You Can Save, The Most Good You Can Do, Animal Liberation Now.
Podcast: petersinger.info/podcast
AI Persona: PeterSinger.ai
Professor of Bioethics, Emeritus, Princeton University.
Future of Life Institute @futureoflife.org We work on reducing extreme risks and steering transformative technologies to benefit humanity.
Learn more: futureoflife.org
HonestReporting @honestreporting.com Media watchdog exposing anti-Israel bias. Holding the media to account. Telegram: https://t.me/HonestReporting
StandWithUs @standwithus.bsky.social Education is the road to peace! We’re fighting #Antisemitism and supporting Israel around the world. Learn more about #Israel at http://standwithus.com
Max Roser @maxroser.bsky.social — Founder of Our World in Data
— Professor at the University of Oxford
Data to understand global problems and research to make progress against them.
Dustin Moskovitz @moskov.goodventures.org Co-founder at Asana and Good Ventures (a funding partner of Coefficient Giving). Strange looper. You can just build the things you want to see in the world.
“Criminally underliked”
William Eden @weden.bsky.social 
@dwarkesh.bsky.social @dwarkesh.bsky.social 
dylan matthews @dylanmatt.bsky.social i write for vox
Peter Wildeford @peterwildeford.bsky.social Globally ranked top 20 forecaster, former data scientist
As seen on TV! The Daily Show, Good Morning America
Protecting liberty and prosperity in the age of superintelligence
Nathan @handle.invalid Geopolitics, prediction markets. FLF Fellow. Capital case tweets are literal, others less. I like most people when I meet them.
Alyssa Vance @alyssavance.bsky.social Senior Data Scientist, Blue Rose Research. Futurist, neophile, machine explorer. alyssamvance@gmail.com
Jack @tracewoodgrains.bsky.social Storyteller. Romantic. Pursue excellence.
Richard Ngo @richardngo.bsky.social What would we need to understand in order to design an amazing future? Ex DeepMind, OpenAI
Miles Brundage @milesbrundage.bsky.social AI policy researcher, wife guy, fan of cute animals and sci-fi, executive director of AVERI, Substacker
Stefan Schubert @stefanschubert.bsky.social I run The Update newsletter: www.update.news
Book: academic.oup.com/book/56384
David Manheim @davidmanheim.alter.org.il Humanity's future can be amazing - let's make sure it is.
Visiting lecturer at the Technion, founder https://alter.org.il, Superforecaster, Pardee RAND graduate.
Sam Bowman @sleepinyourhat.bsky.social AI safety at Anthropic, on leave from a faculty job at NYU.
Views not employers'.
I think you should join Giving What We Can.
cims.nyu.edu/~sbowman
@ozziegooen.bsky.social @ozziegooen.bsky.social 
Samuel Hammond @hamandcheese.bsky.social Social policy synthesizer. www.secondbest.ca
Chris Olah @colah.bsky.social Reverse engineering neural networks at Anthropic. Previously Distill, OpenAI, Google Brain.Personal account.
Geoffrey Irving @girving.bsky.social Cofounder and Chief Scientist at Resolution. Alignment will be solved eventually, but not necessarily in time. Previously UK AISI, DeepMind, OpenAI, Google Brain, etc.
Aaron Bergman @aaronbergman18.bsky.social 👎: suffering | 👍: EA, AI alignment, decoupling, R, cringe, amateur pharmacology + programming | Georgetown '22 (math+econ+phil) | Career status: 🤷♂️
Sean O hEigeartaigh @sean-o-h.bsky.social Academic, AI nerd and science nerd more broadly. Currently obsessed with stravinsky (not sure how that happened).
@jackclarksf.bsky.social @jackclarksf.bsky.social Anthropic and Import AI. Previously OpenAI, Bloomberg, The Register. Weird futures.
Spencer Greenberg @spencrgreenberg.bsky.social A mathematician/entrepreneur in social science. On here, I write about psychology, critical thinking, philosophy, tech, and society.
Aaron Gertler @aarongertler.bsky.social Comms officer @ Open Philanthropy, former Magic pro, webfiction connoisseur. https://aarongertler.net/
Nuño Sempere @nunosempere.com See clearly, act fast, hold myself well. Seek self-reinforcing loops, cherish allies, and play on the side of humanity.
Rossa O'Keeffe-O'Donovan @rossaokod.bsky.social Research @ Open Philanthropy. Formerly economist at GPI / Nuffield College, Oxford.
Interests: development econ, animal welfare, global catastrophic risks
Jeff Sebo @jeffsebo.bsky.social Associate Professor of Environmental Studies, Director of the Center for Environmental and Animal Protection, Director of the Center for Mind, Ethics, and Policy, and Co-Director of the Wild Animal Welfare Program, New York University. jeffsebo.net
Garrison Lovely @garrisonlovely.bsky.social Author of Obsolete: The AI Industry's Trillion Dollar Race to Replace You—and How to Stop It (Nation Books). https://orbooks.com/catalog/obsolete/
Bylines: NYT, Nature, BBC, Bloomberg, MIT Tech Review, TIME + others
Anders Sandberg @arenamontanus.bsky.social Academic jack-of-all-trades. 
Jeroen 🔸 @ahappier.world 🎬 YouTuber (youtube.com/ahappierworldyt)
💡 Active in EA Belgium
🔸 10% Pledge #9211 at givingwhatwecan.org/pledge
📍 Brussels
🌱 #sentientist #effectivealtruism
"Yeroon" /jəˈʀuːn/ (he/him)
Meghan Barrett, PhD @beebytes.bsky.social Asst Prof of Bio @ IUPUI; Director of the Insect Welfare Research Society; Insect neuroscience, farmed insect welfare meghan-barrett.com
opinions mine & do not reflect views of IUPUI
Lewis Dartnell @lewisdartnell.bsky.social Prof., astrobiology researcher, science communicator & book author (http://beinghumanbook.org / http://originsbook.com / http://the-knowledge.org)
Rob Bensinger @robbensinger.bsky.social 
George McGowan @gjmcgowan.bsky.social 
Sebastian Farquhar @sebfar.bsky.social Senior Research Scientist at Google DeepMind. AGI Alignment researcher. Views my dog's.
@wdmacaskill.bsky.social @wdmacaskill.bsky.social 
@esyudkowsky.bsky.social @esyudkowsky.bsky.social 
Naina Bajekal @nainabajekal.bsky.social 
Tim Duffy @timfduffy.com I like utilitarianism, consciousness, AI, EA, space, kindness, liberalism, longtermism, progressive rock, economics, and most people. Substack: http://timfduffy.substack.com
Max Alexander @absurdlymax.bsky.social I do philosophy and a little math, also Effective Altruism. Every day things can get a bit better
Daniel Eth (yes, Eth is my actual last name) @daniel-eth.bsky.social AI alignment & memes | "known for his humorous and insightful tweets" - Bing/GPT-4 | prev: @FHIOxford
Michael Nielsen @michaelnielsen.bsky.social Searching for the numinous
Australian Canadian, currently living in the US
https://michaelnotebook.com
Ruxandra Teslo @ruxandrabio.bsky.social Biologist
Andy Masley @andymasley.bsky.social When the going gets weird the weird turn pro.
Researching and writing about AI and other topics from a broadly effective altruist perspective. On a grant from Coefficient Giving.
andymasley.com
Matt Clancy @mattsclancy.bsky.social Runs Open Philanthropy’s Innovation Policy program. Creator of newthingsunderthesun.com, a living literature review about innovation. Website: mattsclancy.com.
Hannah Ritchie @hannahritchie.bsky.social Deputy Editor, Our World in Data
Senior Researcher, University of Oxford
Climate, energy, environment, all things data.
Lauren Gilbert @lgilbert.co researcher, writer, projects georg. currently: editor, indevelopmentmag.com; writer, laurenpolicy.com.
Frances Lorenz @franceslorenz.bsky.social Claude says I process my emotions externally.
Arjun Panickssery @panickssery.bsky.social Effective Altruism | Spaced Repetition | Quoting Old Books | PELTIV Score of 190 (+6σ) | http://arjunpanickssery.substack.com
Inés @ines.bsky.social twitter import
Agus 🔎🔸 @agucova.bsky.social Accelerate AI safety.
🔗 agus.sh
Tom Chivers @tomchivers.bsky.social "Far too nice to be a journalist," per Terry Pratchett. Lead writer on Semafor's Flagship newsletter. DMs open; chiversthomas(a)gmail.
Latest book, Everything is Predictable: geni.us/EIPBook
Podcast, The Studies Show: https://www.thestudiesshowpod.com
Daniel Filan 🔎 @danielfilan.com I'm mostly on superstimul.us now (profile is @sloeb) (also Twitter)
Jonathan Birch @birchlse.bsky.social Professor, LSE. Philosophy of science, animal consciousness, animal ethics. Director of The Jeremy Coller Centre for Animal Sentience.
Alessandro @poli.sisti.ca Posts on public policy (in 🇨🇦 or abroad), humanities, classical music, altruism effective and ineffective. Many silly posts. Toronto-adjacent.
Astral Codex Ten | Scott Alexander | Substack [Unofficial] @astralcodexten.com.web.brid.gy P(A|B) = [P(A)*P(B|A)]/P(B), all the rest is commentary. Click to read Astral Codex Ten, by Scott Alexander, a Substack publication.
🌉 bridged from 🌐 https://astralcodexten.com/: https://fed.brid.gy/web/astralcodexten.com
Alex Hill @alexlizhill.com Former logician. Aspiring health economist. Research fellow @lshtm-gheco.bsky.social. Thinking about philosophy, public health, econ, stats, feminism, & lots of other things!
https://alexlizhill.com
Jesse Smith @jessetayriver.bsky.social HVAC, catastrophic/x-risks, EA
Rosie @rosiecampbell.xyz Forever expanding my nerd/bimbo Pareto frontier. Ex-OpenAI, AGI safety and governance, fellow @rootsofprogress.
Carl Robichaud @carlrobi.bsky.social Program Officer on nuclear policy at Longview Philanthropy (http://longview.org). Opinions are my own.
Michael Plant @michaeldplant.bsky.social Moral philosopher and happiness nerd. Founder and Director, Happier Lives Institute. Postdoctoral Fellow, Oxford Unviersity. All views yours, weirdly.
Ben Grodeck🔸 @benleoecon.bsky.social Assistant Professor (Clinical) at Purdue University | Experimental & Behavioural Econ | Interested in Altruism, Cooperation, and Morality | PhD from Monash University | Former Postdoc at University of Exeter & MPI
https://sites.google.com/view/bengrodeck
Tim Hua @timhua.bsky.social Helping people is good I guess
Trying to do AI interp and control
Used to do economics
timhua.me
Bella Forristal @bellaforristal.bsky.social I was so close to 1k Twitter followers but here we are ¯\_(ツ)_/¯
Effective altruism, veganism, various weakly-held takes on things | she/her | https://admonymous.co/bellaforristal
Fabio Kuhn 🔸 @mordaroso.bsky.social Director of Tech at Giving What We Can and Software Engineer at Giving Multiplier
80,000 Hours @80000hours.bsky.social You have 80,000 hours in your career.
This makes it your best opportunity to have a positive impact on the world.
https://80000hours.org
arthur wrong 🔸🌱 @arthurwright.bsky.social Dilettante interested in econ, animal liberation, progress, philosophy, Buddhism // EA-adjacent (Head of Community @ Effective Altruism DC) // Views my own, etc
Quinoah 🔍⏸️ @noahtopper.bsky.social yudkowsky's bulldog
Deena Mousa @deenamousa.com Global health & development at Open Philanthropy
https://newsletter.deenamousa.com/
Josh You @justjoshinyou.bsky.social researcher at Epoch AI. Views my own 🔸
tetra 💎⏹️🇺🇳 @thetetra.space 💎 here to believe true things and do good actions 💎 someone should probably solve AI alignment 💎 enjoying things rules! ☀️ but it's not snowing now
english/toki pona/日本語
Ryan Briggs @ryancbriggs.net Raising kids & bread & grant money. Cleaning data & diapers & fish. EA (bed nets, not light cone). Social scientist. typos. twitter.com/ryancbriggs
David Pearce @davidpearce.bsky.social Let’s use biotech to engineer paradise:
hedweb.com
https://x.com/webmasterdave
https://www.bltc.com/bltc-websites.html
https://en.wikipedia.org/wiki/David_Pearce_(philosopher)
Alec Stapp @alecstapp.bsky.social Co-founder IFP
Saloni @scientificdiscovery.dev Co-founder & editor, Works in Progress. Writer, Scientific Discovery. Podcaster, Hard Drugs. Advisor, Coefficient Giving.
Newsletter: https://scientificdiscovery.dev
Podcast: https://harddrugs.worksinprogress.co
🏳️🌈