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Stuart Presnell

@logopetria.bsky.social
496 followers 232 following 2K posts

Mathematics, CS, physics, philosophy Most recently : Teaching logic and philosophy of mathematics in the Philosophy department at the University of Bristol

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Stuart Presnell @logopetria.bsky.social · 6h
I was going to read the novelization of the TV show of the biography of Einstein, but I think I'll wait for them to release the movie adaptation and then just read the back of the box of the tie-in breakfast cereal
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Stuart Presnell @logopetria.bsky.social · 6h
I've lost track, is this the Avatar where the world is divided into domains corresponding to different elements, or the one where the world is divided into domains corresponding to different elements?
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Stuart Presnell @logopetria.bsky.social · 6h
Yeah, somehow aiming for the readers who wouldn't recognise Einstein but would recognise Geoffrey Rush
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Mike Lacher @mikelacher.bsky.social · 08/10/2026
i rebooted minesweeper as a AAA shooter. loot boxes coming soon minesweeper.mikelacher.com
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Stuart Presnell @logopetria.bsky.social · 12h
Following Christ is cheating, you're supposed to count to 10 to let Him find a good spot
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Stuart Presnell @logopetria.bsky.social · 12h
Ok, we heard you, you don't like the horrific mouse-sized insect. That's why today we're proud to announce that we're bringing back its only predator, an extinct badger-sized bat
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Stuart Presnell @logopetria.bsky.social · 22h
“Look buddy I don’t know what to tell you, I just stitch together the body parts and flip the big lightning switch. What happens after that is out of my hands”
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Ryan Estrada @ryanestrada.com · 09/10/2024
Happy Hangul Day! It's a Korean holiday honoring the best and easiest alphabet in the world! Everyone in Korea gets the day off work to contemplate it, but it only takes fifteen minutes to learn! So today, learn to read Korean in 15 minutes!
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Stuart Presnell @logopetria.bsky.social · 09/10/2026
Ah, in the sense that typewriting is purely cumulative (modulo Tipp-Ex)
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Stuart Presnell @logopetria.bsky.social · 09/10/2026
Trying to figure out how a typewriter is like TikTok in reverse. This feels like a Lewis Carroll joke
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Stuart Presnell @logopetria.bsky.social · 09/10/2026
Sometimes the system works
Screenshot of the above post in the Popular With Friends tab
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Stuart Presnell @logopetria.bsky.social · 08/10/2026
Bold experiment attempting to raise the first ever generation of mammals who prefer wire mother
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Stuart Presnell @logopetria.bsky.social · 06/10/2026
Treating this as a CAPTCHA and correctly clicking that none of these are photos of me
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Stuart Presnell @logopetria.bsky.social · 06/10/2026
20th Century Fox to Ridley Scott, 2012
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Stuart Presnell @logopetria.bsky.social · 06/10/2026
We'll know Andy Burnham's plan for growth has been engaged when we see @lastpositivist.bsky.social posting about expensive peaty single malts
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Stuart Presnell @logopetria.bsky.social · 06/10/2026
And sometimes the teleporter pops you up there and you find that this isn't a mountain at all, it's an extinct volcano. That's useful to know. Instead of trying to climb to a non-existent peak you should be planning how to explore the caldera (or perhaps just moving along elsewhere)
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Stuart Presnell @logopetria.bsky.social · 06/10/2026
If you see the base of the mountain rising into the clouds then you don't know exactly where the peak is (or indeed if there's a real peak there at all). The teleporter sends you there and now you know there really is a peak, and where it is. You may even be able to see some of the route from here
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Stuart Presnell @logopetria.bsky.social · 06/10/2026
But it's still true that the Laplace transform is named after a location in France, right?
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Stuart Presnell @logopetria.bsky.social · 05/10/2026
Essentially the same thing happens when you decide that the apparent differences within a debate are merely points within a space, whose axes you then describe (with the aim that everyone should then settle on a common position, i.e. yours). One might call this the pseudo-Schelling point fallacy
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Stuart Presnell @logopetria.bsky.social · 29/08/2025
I've just flown back from Cybertron and boy are my arms tyres
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Stuart Presnell @logopetria.bsky.social · 05/10/2026
I had an Usborne illustrated wildlife book. At certain places in the book, with great anticipation and dread, I used to v-e-r-y carefully turn over two pages at once to avoid seeing the picture of a lobster or a hairy insect
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Stuart Presnell @logopetria.bsky.social · 04/10/2026
"Good artists copy, great artists steal", but some artists are just Borrowers
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Stuart Presnell @logopetria.bsky.social · 04/10/2026
In his later years Henri Matisse was shrunk to the size of a mouse and was reduced to sketching in his doll's house studio with a burnt matchstick
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Stuart Presnell @logopetria.bsky.social · 04/10/2026
Responses to the Like-That-ism Problem divide into Essentialism (those who are Like That are drawn to philosophy) and Causalism (exposure to philosophy makes them Like That). In this paper I problematize this distinction, locating the essence of philosophy's Like-That-icity in the characteristic of
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Stuart Presnell @logopetria.bsky.social · 04/10/2026
Not quite as technically impressive as "Beyond the infinite two minutes", but "River" ("ribā, nagarenaide yo") is another fun time-loop story from the same writer and director (Makoto Ueda and Junta Yamaguchi) with some of the same cast en.wikipedia.org/wiki/River_(...
en.wikipedia.org
River (2023 film) - Wikipedia
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Stuart Presnell @logopetria.bsky.social · 04/10/2026
Wittgenstein lecturer who's just really good at his subject: I don't know whether I play by the rules
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Stuart Presnell @logopetria.bsky.social · 04/10/2026
He misunderstood when an advisor told him he had to appeal to Fleet Street
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Stuart Presnell @logopetria.bsky.social · 03/10/2026
Two philosophers standing in front of a map where an arrow marks "You are Here" A: That's incredible, how did they know? B: Oh, it's a simple consequence of Brouwer's fixed-point theorem A: No no, I get that, but how did they know it would be *us*?
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Desmos Studio @desmos.com · 02/10/2026
You can finally get your ducks in a row (and column). Type “matrix” in any Desmos graphing tool to get started. Learn more: help.desmos.com/hc/en-us/art... #iteachmath #mathsky #linearalgebra #matrices
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Stuart Presnell @logopetria.bsky.social · 02/10/2026
Got to this paragraph and realised something that had never occurred to me before: that rivers don't make great natural boundaries because they tend to move over time Then I went to the footnote and got a jump scare: turns out I'm not the first member of my family to think about that problem
Quote from Jonn Elledge's "A History of the World in 47 Borders"

So which is the 'correct' border? The river as it is today — which the Costa Ricans favour, not unnaturally, since it means that a chunk of Nicaraguan territory has since become Costa Rica? Or the river as it was in the nineteenth century — which the Nicaraguans, equally understandably, preferred? Google, relying on US State Department data, went with the latter. That was enough to give President Ortega's government an excuse to send Pastora's party out to start dredging a silted-up channel in the hope of fixing the reality on the ground, which is where we came in.Quote from Jonn Elledge's "A History of the World in 47 Borders"

In 1982, in the case of Hazlett v Presnell, the High Court of Australia came up with a useful rule for what to do with a river boundary when the course of that river changes.
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Stuart Presnell @logopetria.bsky.social · 02/10/2026
Brecrudescence
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Stuart Presnell @logopetria.bsky.social · 01/10/2026
You mean Jane Wardley? en.wikipedia.org/wiki/Jane_Wa...
en.wikipedia.org
Jane Wardley - Wikipedia
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Stuart Presnell @logopetria.bsky.social · 01/10/2026
Seems like Exe mist comes earlier every year
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Acid Rain @bearysweet.bsky.social · 30/09/2026
The colder autumn nights in Germany coaxes this magnificent eagle, Oropherion, to spend his nights in his heated indoor winter aviary. This is an African Martial Eagle (Polemaetus bellicosus), the largest eagle species native to Africa. (Cr @birdsofprey_nathalie_denolf) #birds #eagle
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Stuart Presnell @logopetria.bsky.social · 30/09/2026
It's only a matter of time before Marvel starts getting desperate for new crossover events
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Stuart Presnell @logopetria.bsky.social · 30/09/2026
With all the changes to their lineup I can never remember which one is Argle and which is Bargle
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Stuart Presnell @logopetria.bsky.social · 30/09/2026
In an N=1 poll of people who haven't heard that song that everyone's heard, none of them (me) had heard that Green party slogan either
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Stuart Presnell @logopetria.bsky.social · 30/09/2026
Needs to convey more of the traditional repression inherent to the character: "Frankly my dear, any feelings I may have held toward you are now stemmed up in an emotional reservoir as if behind a mighty wall that will not yield in the slightest"
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Stuart Presnell @logopetria.bsky.social · 29/09/2026
This is the essence of several decades of classic British comedy Hugh Paddick: "I'm not in the least surprised. I heard he has a feather on his floor" Kenneth Williams: "Well if you ask me — he needs to put water in his cup [leeringly] if you know what I mean!" [Audience in uproarious laughter]
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Michelle says: Be kind. Always. ❤️ @snarkysillysad.bsky.social · 28/09/2026
@indra.dahal24 does tiny construction projects: #AGoodPlace Source: www.reddit.com/r/oddlysatis...
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Stuart Presnell @logopetria.bsky.social · 29/09/2026
At first I didn't believe this, but then I remembered your advice and now I do
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Stuart Presnell @logopetria.bsky.social · 29/09/2026
It's only a toxin if it comes from the bark of a yew tree, otherwise it's just sparkling cyanide
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Stuart Presnell @logopetria.bsky.social · 29/09/2026
I'm currently hearing it in the voice of a skeptical 30's Chicago hoodlum "Don't worry, I got Chancey's money for him, I just need a couple'a days for it to get to me" "Yeah, and there's a chicken on the sidewalk in Brooklyn"
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Alex Morris @asjmorris.bsky.social · 28/09/2026
The final advert.
The Viz advert for Frank Muir Modeller magazine featuring the plasticene model of Frank Muir with exclusives such as 'Make a classic My Music Era Muir out of BabyBel wax'
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mattie lubchansky @mattielubchansky.com · 27/12/2024
realizing i never posted it here….but too long have we been limited by the 2-dimensional political alignment chart. i think by using my new tool we can truly map another person's politics. here it is: The Ideology Cube
political alignment chart with an “annoying to me personally” z-axis
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Stuart Presnell @logopetria.bsky.social · 28/09/2026
The struggle itself towards the heights is enough to fill a man's heart. One must imagine Glonzo happy.
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Stuart Presnell @logopetria.bsky.social · 28/09/2026
If you still have a book you read when you were young then it's probably been closed for a couple of decades, storing up all that evocative paperback smell
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Stuart Presnell @logopetria.bsky.social · 28/09/2026
There are two doors, each guarded by a cat. One has just been let out and wants to come in, the other has just been let in and wants to come out
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Stuart Presnell @logopetria.bsky.social · 28/09/2026
Even more historically infuriating: the can opener was invented 35 years BEFORE there were rings around sharks
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