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Jim Weatherall

@jamesowenweatherall.com
5.8K followers 381 following 221 posts

Philosopher, physicist, mathematician / Chair of LPS @ UC Irvine / EiC of Philosophy of Science / Poultry enthusiast fancier / Irish Step Dancer

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Jim Weatherall @jamesowenweatherall.com · 16/09/2026
Just launched! LPS is running a new certificate program on Science for Policy and the Public. It's an introduction to modern philosophy of science aimed at people who communicate about and advise on science. Check it out! ce.uci.edu/programs/soc... #philsci #philsky #academicsky
ce.uci.edu
Science for Policy and the Public | UC Irvine DCE
The Science for Policy and the Public Certificate is an interdisciplinary certificate program designed to provide learners with foundational knowledge in...
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Kevin Zollman @kevinzollman.com · 31/08/2026
Congrats to @cailinmeister.bsky.social, @olufemiotaiwo.bsky.social, and Nathan Gabriel for their paper being selected @lastpositivist.bsky.social was also an author but he wouldn't want congratulations.
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Jim Weatherall @jamesowenweatherall.com · 27/08/2026
Just published! Klaas Landsman's contribution to the Elements in Philosophy of Physics Series, on Philosophy of Mathematical Physics www.cambridge.org/core/element... Open access for the next two weeks, so get it while you can!
cambridge.org
Philosophy of Mathematical Physics
Cambridge Core - Philosophy of Science - Philosophy of Mathematical Physics
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Jim Weatherall @jamesowenweatherall.com · 25/08/2026
www.bostonreview.net/forum/how-to...
bostonreview.net
How to Save Science
Trump has killed the postwar social contract, but its demise was long in the making. To protect science as a public good, we need a different approach.
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Jim Weatherall @jamesowenweatherall.com · 13/07/2026
New Cambridge Element in Philosophy of Physics just published! The Philosophy of Time Reversal, by Cristian Lopez. Available for free for the next two weeks: www.cambridge.org/core/element...
cambridge.org
The Philosophy of Time Reversal
Cambridge Core - Philosophy: General Interest - The Philosophy of Time Reversal
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jb manchak @manchak.bsky.social · 24/05/2026
Not sure who needs to hear this today but determinism is not a mysterious metaphysical notion. If you or a loved one are struggling with haecceities, hang in there and read this paper. You got this! (new work with Hans Halvorson and @jamesowenweatherall.com) onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
Deterministic Theories
Determinism is (roughly) the thesis that the past determines the future. But efforts to define it precisely have exposed deep methodological disagreements. Standard possible-worlds formulations of de...
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Jim Weatherall @jamesowenweatherall.com · 03/02/2026
New Cambridge Element in Philosophy of Physics! Classical and Quantum Phase Space Mechanics, by Karim Thebault. Open Access for the next two weeks. www.cambridge.org/core/element...
cambridge.org
Classical and Quantum Phase Space Mechanics
Cambridge Core - Philosophy: General Interest - Classical and Quantum Phase Space Mechanics
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Jim Weatherall @jamesowenweatherall.com · 01/02/2026
Deadline extended to February 15th! Please share widely.
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Jim Weatherall @jamesowenweatherall.com · 09/01/2026
Submissions are open for Foundations of Physics 2026, in Irvine, CA! Hosted by the Department of Logic and Philosophy of Science. Submission deadline is February 1. Tell your friends! foundations2026.us
foundations2026.us
Foundations 2026
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Utrecht History & Philosophy of Science @utrechthps.bsky.social · 29/11/2025
Prof Chris Smeenk (Western Uni, London Ontario) will be giving the 2025 Beth Lecture, presenting his upcoming book with @jamesowenweatherall.com on the aim and structure of cosmological theory. 10 Dec 2025, Academiegebouw Utrecht, 19:30-21:00, followed by reception. hpp-nl.nl/events/beth2...
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Jim Weatherall @jamesowenweatherall.com · 03/12/2025
Claude Sonnet 4.5 just told me I have "graduate-level philosophical insight" and "genuine philosophical ability". Ngl feeling pretty chuffed.
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Jim Weatherall @jamesowenweatherall.com · 31/10/2025
The Phil-Sci Archive at Pitt is now pushing papers out on Bluesky. Follow the account below to see them @philsci-archive.bsky.social
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jb manchak @manchak.bsky.social · 23/10/2025
Had an absolute blast writing this paper with Thomas, Hans, and @jamesowenweatherall.com! GR turns out to be way more deterministic than previously appreciated. The past determines the future not only up to isomorphism but up to *unique* isomorphism! 🤯
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Jim Weatherall @jamesowenweatherall.com · 07/10/2025
Hey folks -- this is of "historical importance"! Formal proof and epistemic value open.substack.com/pub/siliconr...
open.substack.com
Formal proof and epistemic value
A guest post by (philosopher) Jim Weatherall and (mathematician) Jesse Wolfson
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Cailin O’Connor @cailinmeister.bsky.social · 19/09/2025
Hello! I just started at new center at UCI! Some main foci will be misinformation, metascience, and equity! www.socsci.uci.edu/newsevents/n...
socsci.uci.edu
New UC Irvine Center for Socially Engaged Philosophy aims to address real world problems
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Jim Weatherall @jamesowenweatherall.com · 19/09/2025
Just had the surreal experience of finding my own (not very common) name in the von Neumann papers.
10 P.M. Called Walter Reed, talked to Dr. Weatherall
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Jim Weatherall @jamesowenweatherall.com · 19/09/2025
New Element just published! Philosophy of Cosmology and Astrophysics, by Siska De Baerdemaeker. Open access until 10/3. Tell your friends! www.cambridge.org/core/element...
cambridge.org
Philosophy of Cosmology and Astrophysics
Cambridge Core - Philosophy: General Interest - Philosophy of Cosmology and Astrophysics
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Jim Weatherall @jamesowenweatherall.com · 27/08/2025
#philski #philsci Quick Q: anyone know what semantic glue is supposed to be? Can I get it on Amazon or do I have to go to like a crafts store?
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Jim Weatherall @jamesowenweatherall.com · 26/08/2025
I love this interview Nathan Ballantyne just posted with Pen Maddy. Pen is one of my all-time favorite philosophers (and most influential mentors). This captures her outlook and personality beautifully. www.the-workbench.ca/interviews/p...
the-workbench.ca
Penelope Maddy’s Workbench - The Workbench
A writer’s world is often invisible from the outside unless they let you in. Sometimes when a sentence, paragraph, or essay strikes you as forceful or elegant, you might try to reverse engineer the au...
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Jim Weatherall @jamesowenweatherall.com · 26/08/2025
new motto for zfc just dropped
For use in any non-structural construction project.
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Jim Weatherall @jamesowenweatherall.com · 26/07/2025
I keep coming back to the Gaetz nomination for AG in light of all this Epstein stuff.
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Andrew Zeppa @andrewzeppa.bsky.social · 18/07/2025
Have you ever wanted to visualize how belief polarization might occur in scientific communities? Then check out this simulator, based on the model developed by @cailinmeister.bsky.social and @jamesowenweatherall.com in their (2018) paper on polarization #philsci #philsky #metasci
zeppaphisci.github.io
Epistemic Community Simulation
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Jim Weatherall @jamesowenweatherall.com · 23/07/2025
Tell me you've never cared for a toddler without telling me you've never cared for a toddler. (Descartes' fourth rule governing collisions, from Principles of Philosophy [1644].)
A statement of Descartes' fourth rule of motion, which states that a smaller body can never move a stationary larger body, no matter its speed
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Jim Weatherall @jamesowenweatherall.com · 23/06/2025
Very excited for this summer school on my forthcoming book with Chris Smeenk, The Aims and Structure of Cosmological Theory!! The book is very nearly finished. Let us know if you'd like to give feedback on a draft. www.usi.ch/en/education...
usi.ch
Summer School: The Aim and Structure of Cosmological Theory
A number of challenging questions arise in contemporary cosmology, and philosophers can contribute constructively to answering them. Over the past century cosmologists have debated whether, for exampl...
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Jim Weatherall @jamesowenweatherall.com · 21/06/2025
Information dynamics on Twitter are incredible right now. Israel and Iran are both very good at viral disinformation, and it is easy to find bubbles where everyone is convinced each side is definitely winning. Plus the red-pilled, conspiracy-curious right is split in two and arguing like mad.
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Jim Weatherall @jamesowenweatherall.com · 19/06/2025
@bostonreview.bsky.social just published a Forum on a recent (critical) post-mortem of US COVID policy, with responses from me and @cailinmeister.bsky.social, along with @adamjkucharski.bsky.social, Adam Gaffney, and @jonathanpjwhite.bsky.social. V. interesting! www.bostonreview.net/forum/how-di...
bostonreview.net
How Did We Fare on COVID-19? - Boston Review
To restore public trust and prepare for the next pandemic, we need a reckoning with the U.S. experience—what worked, and what didn’t.
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Jim Weatherall @jamesowenweatherall.com · 15/05/2025
Who was this said about? "He is undoubtedly a genius, but he is also exceedingly temperamental and has almost ludicrously bad judgment."
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Jim Weatherall @jamesowenweatherall.com · 14/05/2025
Richard L. Garwin, a Creator of the Hydrogen Bomb, Dies at 97 www.nytimes.com/2025/05/14/s... Dick Garwin was such an incredible scientist and engineer, but he was very often in the shadows. Though I am very sorry to hear he has passed, I love the long and well-deserved obit from NYT.
nytimes.com
Richard L. Garwin, a Creator of the Hydrogen Bomb, Dies at 97
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Jim Weatherall @jamesowenweatherall.com · 17/04/2025
I am dismayed to report that @cailinmeister.bsky.social now has a lower Erdos-Bacon number than me. There are no words. I appreciate privacy during this difficult period. That said, if anyone is looking for a young Tom Selleck in an upcoming Kevin Bacon film pls DM me.
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Jim Weatherall @jamesowenweatherall.com · 08/04/2025
Three new papers out on the philsci archive! Natural Theories, with Eleanor March (philsci-archive.pitt.edu/25019/) Spacetime Models for Cosmology (CLMPST 23, for Roberto Torretti -- philsci-archive.pitt.edu/25018/) On (Some) Gauge Theories of Gravity (PSA 24 -- philsci-archive.pitt.edu/25017/)
philsci-archive.pitt.edu
Natural Theories - PhilSci-Archive
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Jim Weatherall @jamesowenweatherall.com · 05/04/2025
@cailinmeister.bsky.social Nice mention in the Atlantic today! www.theatlantic.com/ideas/archiv...
theatlantic.com
Trump Is Gaslighting Us
Trump is an agent of chaos, and chaos has a human cost.
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Jim Weatherall @jamesowenweatherall.com · 01/04/2025
Anyone been to uci.edu lately?
uci.edu
Home | UC Irvine
Home page for the University of California, Irvine.
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Cailin O’Connor @cailinmeister.bsky.social · 20/03/2025
Undergrads interested in philosophy of science? Please share that applications are open for our summer development program! lpssdp.com?fbclid=IwY2x...
lpssdp.com
LPS Summer Development Program – August 11th to 15th, 2025
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Jim Weatherall @jamesowenweatherall.com · 13/03/2025
Surprised by this Munich to London leg of my trip from Irvine to Bangalore.
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jb manchak @manchak.bsky.social · 10/03/2025
Two new papers out today on "determinism" co-authored with the foundations of (a)symmetries dream team: @jimweatherall.bsky.social, Hans Halvorson, and Thomas Barrett. #philsci #philsky philsci-archive.pitt.edu/24881/ philsci-archive.pitt.edu/24883/
philsci-archive.pitt.edu
Determinism and Asymmetry in General Relativity - PhilSci-Archive
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Jim Weatherall @jamesowenweatherall.com · 07/03/2025
The deadline to register for Foundations of Physics 2025, in Gdansk Poland, is coming up next week! The process is confusing. To submit your abstract, you need to register for the meeting (no fee is charged!). Abstract submission is part of that process. philosophyofphysics.org/2024/11/foun...
philosophyofphysics.org
Foundations of Physics 2025 - Philosophy of Physics Society
The International Centre for Theory of Quantum Technologies (ICTQT) at […]
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Jim Weatherall @jamesowenweatherall.com · 07/03/2025
#philsky #philsci Videos from the workshop on Symmetry and Structure that Clara Bradley and I organized in Irvine in September 2023 are now available online. Some very interesting stuff there! Enjoy! jamesowenweatherall.com/symmetry-and... youtube.com/playlist?lis...
youtube.com
Symmetry and Structure, UCI Workshop October 2023 - YouTube
Talks from the workshop "Symmetry and Structure", hosted by the Department of Logic and Philosophy of Science at the University of California, Irvine. 27-28 ...
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Jim Weatherall @jamesowenweatherall.com · 06/03/2025
Poster for talk "Curation as Misinformation" by Cailin O'Connor and James Weatherall, for the series Kaapi with Kuriosity at the International Centre for Theoretical Sciences in Bangaluru.
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Jim Weatherall @jamesowenweatherall.com · 04/03/2025
Our workshop Humans, Math, and Machines is coming up this weekend. In-person registration is closed (because we are full!), but you can still register for remote participation. The event will not be recorded. I will distribute a Zoom link prior to the meeting. www.lps.uci.edu/workshops/ai...
lps.uci.edu
Humans, Math, and Machines
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Jim Weatherall @jamesowenweatherall.com · 01/03/2025
New Element in Philosophy of Physics just published! Karen Crowther's "Why Do We Want a Theory of Quantum Gravity?" is available for free online for two weeks. www.cambridge.org/core/element...
cambridge.org
Why Do We Want a Theory of Quantum Gravity?
Cambridge Core - Philosophy: General Interest - Why Do We Want a Theory of Quantum Gravity?
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Jim Weatherall @jamesowenweatherall.com · 20/02/2025
@tobymeadows.bsky.social gave the coolest talk today in our Logic seminar. I feel like everything that has ever kept me up at night about theoretical equivalence has been resolved.
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Jim Weatherall @jamesowenweatherall.com · 12/02/2025
Workshop announcement! #philsci #philsky #ai #math Jesse Wolfson (UCI Math, LPS) and I are organizing a meeting on what math is for and how AI can contribute. March 7 & 8, with a great interdisciplinary lineup! www.lps.uci.edu/workshops/ai...
lps.uci.edu
Humans, Math, and Machines
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Jim Weatherall @jamesowenweatherall.com · 03/02/2025
Another great new Element! This one is Gauge Theory and the Geometrisation of Physics, by Henrique Gomes. Free for two weeks, so get it now! #philsky #philsci ⚛️ www.cambridge.org/core/element...
cambridge.org
Gauge Theory and the Geometrisation of Physics
Cambridge Core - Philosophy: General Interest - Gauge Theory and the Geometrisation of Physics
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Jim Weatherall @jamesowenweatherall.com · 31/01/2025
Very happy to share the newest entry in the Elements in Philosophy of Physics series: Causation in Physics, by Christopher Weaver. This one is permanently open access, courtesy of the University of Illinois, Urbana-Champagne. www.cambridge.org/core/element...
cambridge.org
Causation in Physics
Cambridge Core - Philosophy: General Interest - Causation in Physics
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Jim Weatherall @jamesowenweatherall.com · 11/01/2025
I really vibed with today's connections.
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Jim Weatherall @jamesowenweatherall.com · 10/01/2025
Excited to share that LPS is hosting a workshop in two weeks to mark the publication of Jeff Barrett's new book, Self-Assembling Games, which extends his paper with Brian Skyrms with the same title. Book link isn't up on Oxford's site yet, but workshop info here: www.lps.uci.edu/workshops/sa...
lps.uci.edu
Self-Assembling Games
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Stephen C. Rea @stevierea.bsky.social · 09/01/2025
Re: some of the takes On Here about how climate denialism works/has worked, putting a plug in for @jimweatherall.bsky.social and @cailinmeister.bsky.social’s book, which details the history of what I’d call weaponized bothsidesism and whataboutism in the lobbying world:
yalebooks.yale.edu
The Misinformation Age
The social dynamics of “alternative facts”: why what you believe depends on who you know“Empowering and thoroughly researched, this book offers useful ...
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Jim Weatherall @jamesowenweatherall.com · 09/01/2025
I just heard Robert Waldinger say that the Boston Strangler (!) was part of the Harvard Study of Adult Development cohort?! Is this common knowledge?
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Jim Weatherall @jamesowenweatherall.com · 09/01/2025
Friends and followers in the UC system (especially quarter campuses, but also Berkeley and Merced): how much chatter are you hearing about the systemwide push to move to semesters? Have there been any announcements or opportunities to provide feedback? Are you aware that it's happening?
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Jim Weatherall @jamesowenweatherall.com · 07/01/2025
@cailinmeister.bsky.social and I will be presenting at the upcoming @apsphysics.bsky.social STP/JNIPER Joint Virtual Community Hour on Jan. 14 from 2 to 3 P.M. ET. Register here: apsphysics.zoom.us/meeting/regi... We will be talking about curation as misinformation (see link). Come join us!
apsphysics.zoom.us
Welcome! You are invited to join a meeting: Joint Science Trust & JNIPER January Community Hour. After registering, you will receive a confirmation email about joining the meeting.
Discussions of misinformation have tended to focus on lies, fraud, conspiracy theories, and inaccurate content more generally. But curation - the processes whereby just some accurate information is se...
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