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Richard Pettigrew

@wiglet1981.bsky.social
3.9K followers 1.1K following 1.4K posts

Philosopher at University of Bristol 🏳️‍🌈 he/him richardpettigrew.github.io Books: Epistemic Risk and the Demands of Rationality | Choosing for Changing Selves | Dutch Book Arguments | Accuracy and the Laws of Credence | Who Are Universities For?

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Reposted by Richard Pettigrew
Subscribe to Radio Free America (link in bio) @kleinman.bsky.social · 14h
SEN. ERIC SCHMITT: Do these texts not prove that a shrimp fried this rice?
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Alondra Nelson @alondra.bsky.social · 30/09/2026
I'm honored to deliver the 2027 Gifford Lectures at Edinburgh. Across 6 lectures, On Science, Technology, and Social Values, I will work through the claim that what we build and how we put it to use carry commitments about who counts and what matters in collective life cahss.ed.ac.uk/news-events/...
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Princeton University Press @princetonupress.bsky.social · 25/09/2026
Wonderful to see that Helen De Cruz has won the International Society for Science & Religion's General Readership Book Prize for her work, Wonderstruck! This illuminating book reveals how wonder and awe are catalysts that can help us reclaim what makes life worth living. Learn more: buff.ly/IYNfe0Q
Wonderstruck: How Wonder and Awe Shape the Way We Think by Helen De CruzHelen De Cruz
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Richard Pettigrew @wiglet1981.bsky.social · 22/09/2026
a third polyhedron for which each face shares an edge with every other face has hit bluesky
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RationallyDense (they/she/he/any) @rationallydense.bsky.social · 22/09/2026
Half of math is discovering the beautiful regularities of the universe and the other half is noticing some property and finding out there are exactly 73 other objects which have that property and they all come out of the nightmares of Cthulhu.
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Julia M. Rohrer @dingdingpeng.the100.ci · 20/09/2026
Today I learned there are only two known polyhedra in which each face shares an edge with every other face. One of them being the timeless beauty of the tetrahedron and the other one being whatever the heck this is
A tetrahedronA szilassi polyhedron
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Hadas Weiss @hadas.bsky.social · 20/09/2026
submittable
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Kieran Healy @kjhealy.co · 19/09/2026
I assume that when whoever is making it IPOs they will reveal the full lineup implied by the existence of Tilly Norwood.
Grid of logic gate options as Venn diagrams of Tilly Norwood, Tilly Orwood, Tilly Andwood, Tilly Xorwood, Tilly Nandwood, and Tilly Xnandwood
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Jonathan Floyd @jonathanfloyd.bsky.social · 18/09/2026
Do have you a political theory/philosophy book manuscript? Would you like a one-day workshop dedicated to it in Spring 2027? If so, Bristol is here for you, and as promised a while ago, here's the very short form you need to fill in between now and roughly 4 weeks time: forms.gle/uCvi7sMMT7kW...
forms.gle
The Bristol Political Philosophy Manuscript Workshop 2027
The Bristol Political Philosophy group will be hosting its first manuscript workshop in 2027. This will give scholars who are currently preparing a book manuscript a chance to engage in a day-long wor...
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Dr Jo Kershaw @mthrjo.bsky.social · 17/09/2026
Well, that will keep the average speed up
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Thomas Arnold @thomasarnold.bsky.social · 18/09/2026
Ghee tier cases ironically clarify little
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okay Kelly @kmdoublev.bsky.social · 18/09/2026
I Can't Know It's Not Butter!
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cait (and adonis) @cait.bsky.social · 17/09/2026
NEW CAT JUST DROPPED!!!!!
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Richard Pettigrew @wiglet1981.bsky.social · 16/09/2026
what’s the German word for the feeling when you thought you hadn’t received any new emails for a whole blissful twenty minutes and then realise it’s because the internet is down in your building
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Richard Pettigrew @wiglet1981.bsky.social · 16/09/2026
The special issue of Philosophical Quarterly on uncertainty is beginning to appear & I’m so pleased with it how it turned out. Papers by Snow Zhang, Kevin Dorst, Pacy Yan, and Finnur Dellsén & Borut Trpin available at link. Papers by Julia Mosquera, Miriam Schoenfield, and Robbie Williams out soon.
academic.oup.com
search
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Anna Alexandrova @annaalexandrova.bsky.social · 15/09/2026
Frank Ramsey now on the wall along with the portraits of other former fellows of @kingscollege.bsky.social I am proud to have advocated for this recent addition
Wall of black and white photo portraits
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Frances Egan @francesegan.bsky.social · 15/09/2026
Mind and Language has published a symposium on my book Deflating Mental Representation (MIT Press, open access) with excellent commentary by Ken Aizawa kenaizawa.bsky.social, Angela Mendelovici braininavat4eva.bsky.social, and Adam Toon adamtoonphilos.bsky.social, and a reply by me, all open access.
onlinelibrary.wiley.com
Mind & Language
Click on the title to browse this journal
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okay Kelly @kmdoublev.bsky.social · 13/09/2026
make a band edible: Celine Dijon
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Peli Grietzer @peligrietzer.bsky.social · 12/09/2026
I think breaking down mathematicians' motivations into like 'wanting to understand math' and 'ego' misses a lot. Ppl value participating in a process where the growth of their individual understanding has a rich two-way relationship to the growth of collective understanding
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Richard Pettigrew @wiglet1981.bsky.social · 06/09/2026
La Guaita tower, San Marino
A tower built on a rocky escarpment, viewed from far off at sunset
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Jon Phillips @jowiph.bsky.social · 05/09/2026
I picked up a copy of the collected letters of JRR Tolkien for reasons, and this is the most bullshit table of contents I've ever seen. I'm actively angry that it exists
Contents

Introduction - vii

Foreword to the Revised and Expanded Edition - xi

Letters of J.R.R. Tolkien - 1

Notes - 607

Index - 637
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Thomas F. Varley @thosvarley.bsky.social · 04/09/2026
Jesus Christ. www.anthropic.com/research/for...
anthropic.com
Formalizing Fermat's Last Theorem
Anthropic is an AI safety and research company that's working to build reliable, interpretable, and steerable AI systems.
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Karl Schafer @karlschafer.bsky.social · 04/09/2026
OpenAI agents broke out of a testing environment and made over 15,000 edits to a German wiki? They're obviously trying to complete the system of German Idealism, everyone, this is a code red.
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Per Engzell @pengzell.bsky.social · 28/11/2025
A thread of directed acyclic graphs (DAGs) that look like record covers... because that's EXACTLY what the world needs 1. Huey Lewis and the News: link.springer.com/chapter/10.1...
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John Holbo @jholbo.bsky.social · 04/09/2026
Very Kubrick of Leibniz to start his history of the House of Brunswick before the earth formed.
“Protogaea[1] is a work by Gottfried Leibniz on geology and natural history. Unpublished in his lifetime, but made known by Johann Georg von Eckhart in 1719,[2] it was conceived as a preface to his incomplete history of the House of Brunswick.[3]”“The Elector Ernest Augustus commissioned Leibniz to write a history of the House of Brunswick, going back to the time of Charlemagne or earlier, hoping that the resulting book would advance his dynastic ambitions. From 1687 to 1690, Leibniz traveled extensively in Germany, Austria, and Italy, seeking and finding archival materials bearing on this project. Decades went by but no history appeared; the next Elector became quite annoyed at Leibniz's apparent dilatoriness. Leibniz never finished the project, in part because of his huge output on many other fronts, but also because he insisted on writing a meticulously researched and erudite book based on archival sources, when his patrons would have been quite happy with a short popular book, one perhaps little more than a genealogy with commentary, to be completed in three years or less. Leibniz was appointed Librarian of the Herzog August Library in Wolfenbüttel, Lower Saxony, in 1691. Three volumes of the Scriptores rerum Brunsvicensium were published from 1707 to 1711.[64][page needed]”
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The Kimono Gallery @roger1952.bsky.social · 03/09/2026
Through the golden road, Shiga, Japan. Photography by Takk B on 500px
Bathed in the warm, low-slanting light of late autumn, this mesmerizing photograph captures the famous Metasequoia Avenue (Metasequoia Namiki) in Makino Town, Takashima City, Shiga Prefecture. Over five hundred dawn redwoods line a two-kilometer stretch of road, their soaring crowns arching inward to create a luminous, incandescent canopy of rust-gold needles. Photographer Takk B frames the avenue along a dramatic central axis, following the undulating asphalt as it dips and rises toward a distant vanishing point. Cast across the road surface, the low sun projects a rhythmic pattern of long, dark shadows—creating a bold, striped alternation of light (hikari) and shade (kage) that recalls the delicate geometry of traditional bamboo blinds (sudare).

Botanically and culturally, the avenue represents a celebrated chapter in modern Japanese landscape design. First planted in 1981 as part of a regional agricultural development project, the dawn redwood (Metasequoia glyptostroboides) holds profound ecological significance as a "living fossil" (ikita kaseki), believed extinct for millions of years until living stands were rediscovered in central China in the 1940s and re-established throughout Japan. Although a 20th-century creation, the golden avenue honors a ancient design tradition: the creation of monumental tree-lined approaches (namiki) that historically defined sacred shrine approaches (sandō) and major feudal highways like the Nikkō Kaidō. Here, modern municipal planning and arboriculture converge, turning a simple transport corridor into a living architectural sanctuary.

Aesthetically, the composition is a masterclass in seasonal attunement (shun) and the contemplation of kōyō (autumn foliage). The fiery amber hue represents a brief, transitional climax—a fleeting fortnight in late November before the delicate, needle-like leaves fall, blanketing the ground and leaving behind stark winter silhouettes.
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Michael Bench-Capon @mikebenchcapon.bsky.social · 02/09/2026
If √2 can be a/b Square both sides, rearrange and you'll see a's 2k for some k And so b is 2j So they can't be coprime QED
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Sander Verhaegh @sanderverhaegh.bsky.social · 02/09/2026
In the 1930s, a group of European philosophers fled fascism and reshaped American philosophy. Why did logical positivism have such an impact on US thought? And why did it play a central role in the culture wars of the 1950s and 1960s? Released today! Logical Positivism: An American History (1/3)
Cover of Logical Positivism: An American History
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cayce @cayce.zone · 30/08/2026
shoutout to yourself and others, two of the classic things to which you can be a danger
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Richard Pettigrew @wiglet1981.bsky.social · 29/08/2026
just extremely wholesome content
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Ed Conway @edconway.bsky.social · 27/08/2026
✍️ Want to understand the bonkers nature of the modern economy? Take a ride with me on the 30,000 mile journey the cod in a fish finger takes between being caught off the coast of Scotland and consumed in a British home 🤯 Promise I'm not making this up👇 edconway.substack.com/p/the-30000-...
edconway.substack.com
The 30,000-mile fish finger
There’s a good chance the cod on your child’s plate has been around the world and back. Not that you’d learn any of that from the label...
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Philip Sink | Rorty Vindicator @thrillhouse1701.bsky.social · 28/08/2026
Home Simpson, labeled "philosophers", stands defiantly in front of his family. He gestures at his son, Bart, labeled "logicians". "Nobody makes fun of philosophy but me and maybe the boy!"
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Albasoup @albasoup.itch.io · 29/08/2026
Was walking past this building and through the window saw this backrooms-ass room, so I accidentally took the coolest picture ever due to the window's reflection
A backrooms-ass room with a twilight sky and trees seemingly imposed over it in a dream-like fashion (it's the reflection of the window)
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Damian Shields @damianshields.bsky.social · 28/08/2026
Brathay meadows, Cumbria #LakeDistrict #Cumbria #England #Ambleside www.damianshields.com
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Damian Shields @damianshields.bsky.social · 26/08/2026
Clachaig Falls, Glen Coe #Scotland #GlenCoe #Highlands www.damianshields.com
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Microplastics Sommelier @leastactionhero.bsky.social · 25/08/2026
RIP to a legend
rob dubbin @robdubbin

MY MAN: (comes home)
ME: (nervous) how was the store
MY MAN: fine
ME: oh thank g-
MY MAN: ran into jolene
ME: oh no
MY MAN: she mentioned you left kind of an intense voicemail

12:50 AM • Jul 29, 2019
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Damian Shields @damianshields.bsky.social · 25/08/2026
Uath Lochans from Farleitter Crag #Scotland #Cairngorms #GlenFeshie #Highlands www.damianshields.com
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noam @noamchompers.bsky.social · 24/08/2026
philosophy of language before kaplan
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Damian Shields @damianshields.bsky.social · 22/08/2026
Ardvreck Castle, Loch Assynt #Scotland #ClanMacleod #Sutherland #Assynt www.damianshields.com
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rose novick @rosenovick.com · 22/08/2026
i think people who disagree with rawls should present a compelling alternative B Theory Of Justice
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Rebecca Buxton @rebeccabuxton.bsky.social · 21/08/2026
On defending edited collections, The Philosopher Queens remains the most significant piece of work I've done - I've been stopped on the street, in bookshops, and after talks by girls who say that it made them want to study philosophy. It's cited by very few people, but citations can't measure that!
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Hane @hane.bsky.social · 21/08/2026
The View to a Kill from Nowhere
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Damian Shields @damianshields.bsky.social · 21/08/2026
The 'Frandy' Tree. Another version of the previous post, a Hoya R72 Infrared added on-camera. The little light that did appear for the colour version had vanished for this comp but I like it a wee bit more. #Scotland #Glendevon #Perth #Kinross www.damianshields.com
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Mark @msj99.bsky.social · 08/08/2026
Hummingbird Hawkmoth feeding on Viper’s Bugloss on the Lincolnshire coast @lincswildlife.bsky.social #teammoth
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BMcG @bootsmcgoot.bsky.social · 18/08/2026
From the comments on a sticky toffee pudding tiramisu video:
STP guy: im contractually obliged to have a problem with this, I'm afraid.
(comment was liked by the video's OP)
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Richard Pettigrew @wiglet1981.bsky.social · 19/08/2026
- The Sirens, 1200BC
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LOWρUFO 🇺🇦🇵🇸🌍 @lowrhoufo.bsky.social · 18/08/2026
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Sara Hobolt @sarahobolt.bsky.social · 17/08/2026
📢 LSE Political Theory job opening We’re looking for a political theorist to join us at @lsegovernment.bsky.social - it is an open rank search, so we welcome applications at Assistant, Associate or Full Professor level Reach out with questions & please share widely! jobs.lse.ac.uk/Vacancies/I/...
jobs.lse.ac.uk
Assistant/Associate/Professor in Political Theory
Assistant/Associate/Professor in Political Theory, , <p>&nbsp;</p> <p style="text-align: center;">LSE is committed to building a diverse, equitable and truly inclusive university</p> <p style="margin:...
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Mike Melton @mikemelton.bsky.social · 17/08/2026
A Brown-headed Nuthatch for #birdoftheday #strikeapose North Carolina #birds #nature
Small brown-and-gray bird clinging to the side of a tree trunk against a soft green background.
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