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Cody

@codyroux.bsky.social
832 followers 445 following 1.7K posts

Still ultrafinitist, but with a softer side. www.kleene.church I do the Church of Logic podcast. open.spotify.com/show/6vEh6ZpQr1Eoe…

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Reposted by Cody
Louis Barclay @louisbarclay.bsky.social · 29/09/2026
The latest urgent research from the Center for the Alignment of AI Alignment Centers: alignmentalignment.ai/caaac/blog/p...
alignmentalignment.ai
Prediction: AI will kill every human by next year, or not
Our latest prediction model uses cutting-edge binary methodology to forecast potential AI futures
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Cody @codyroux.bsky.social · 28/09/2026
Anyone wanna hang in Paris on Friday?
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Cody @codyroux.bsky.social · 14/09/2026
Pet peeves #5382: people calling an event a "happening"
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Cody @codyroux.bsky.social · 07/09/2026
A new episode! I explain how to construct an oracle such that P != NP relative to it. It's quite a cute construction! open.spotify.com/episode/4W6k...
open.spotify.com
An oracle for P vs NP
The Church of Logic · Episode
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Cody @codyroux.bsky.social · 03/09/2026
People sometimes think insomnia means you're not tired. Sadly that is not the case. Fight club really increased awareness for insomnia though it has to be said.
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Cody @codyroux.bsky.social · 31/08/2026
Shit I've been classified
A reddit screenshot with the text:

- Kind of a anti- manic pixie dream girl
- Depressed ogre nightmare boy?
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Cody @codyroux.bsky.social · 28/08/2026
I'd never seen the movie Rocky (1976). What no one tells you is that that one famous montage scene is by far the most weird and jarring bits of the movie. It is bizarre that that is what was remembered.
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Cody @codyroux.bsky.social · 26/08/2026
I'm a friendcel. I believe the market is saturated with high value friends leaving boring dudes like me out to dry
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Cody @codyroux.bsky.social · 21/08/2026
Under appreciated casualties of global warming: the songs "California dreamin'" by the Mamas and the Papas and "Hazy shade of winter" by the Bangles
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Cody @codyroux.bsky.social · 14/08/2026
Rewatching Smallville. It's basically a masterclass in bad dialogue. But somehow that's kind of what it has going for it? Like an almost comical lack of subtlety.
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Cody @codyroux.bsky.social · 12/08/2026
Help settle an argument with my wife: does "oven" rhyme with "eleven"?
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Cody @codyroux.bsky.social · 11/08/2026
Imperfections are charming... on attractive people. So are perfections, come to think of it.
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Cody @codyroux.bsky.social · 10/08/2026
Part 2 of Extensionality vs Intensionality in Type Theory with Loic Pujet! I could listen to that gentle voice all day! open.spotify.com/episode/3qVh... I'd love to do an episode where we explore all the anti-classical variants as well.
open.spotify.com
Loïc Pujet - Type theory and extensionality part II
The Church of Logic · Episode
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Cody @codyroux.bsky.social · 08/08/2026
I wonder if being a computer scientist today is like being a dinosaur astronomer. Like, it's exciting to see, but it could destroy us all.
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Cody @codyroux.bsky.social · 04/08/2026
Super pumped to have interviewed Loic Pujet for a new episode! We talked about extensionality in type theory, which comes up a lot in practice (and in theory). open.spotify.com/episode/5B8u... as usual, the RSS: anchor.fm/s/db787130/p...
open.spotify.com
Loic Pujet - Type theory and extensionality part I
The Church of Logic · Episode
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Cody @codyroux.bsky.social · 02/08/2026
In preparation, I'll be watching Spider-man: no way home, Spider-man: there's no place like home and Spider-man: Lost in New York
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Cody @codyroux.bsky.social · 31/07/2026
Keeping out of the sun is a good way to make your skin seem young and your mind seem depressed
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Cody @codyroux.bsky.social · 27/07/2026
Expecting a Text - Gustave Courtois (1882)
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Cody @codyroux.bsky.social · 25/07/2026
Now nostalgia heavy shows are catering to people younger than me.
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Cody @codyroux.bsky.social · 23/07/2026
Pack it up folks, we've solved PL.
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Cody @codyroux.bsky.social · 23/07/2026
Someone on Reddit was explaining how one can date ancient historical works like the Odyssey by checking references in the text to objects or places for which we have an earliest possible date, like when Ulysses gets into his Lamborghini Aventador, which was not produced until approx 2011
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Cody @codyroux.bsky.social · 23/07/2026
The problem with appsec xkcd.com/937/
xkcd.com
TornadoGuard
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Cody @codyroux.bsky.social · 21/07/2026
I've found that treating people as if they were intelligent is actually quite effective. This "50% of people are even dumber than that" George Carlin BS does not make you as cool as you think.
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Cody @codyroux.bsky.social · 20/07/2026
So the Jacobian conjecture is false huh? It's been a disappointing year.
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Cody @codyroux.bsky.social · 13/07/2026
I'm a good programmer because I'm a bad programmer. That clever idea you had that's gonna be unmanageable at 10k lines? I hit that limit at 200 lines.
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Cody @codyroux.bsky.social · 13/07/2026
Man I've been holding in this pee for McConnell's grave for nothing!?
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Cody @codyroux.bsky.social · 13/07/2026
The enema of my enema
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Cody @codyroux.bsky.social · 12/07/2026
Grothendieck's Erdős number is 3. I'm not sure whether I expected this to be higher or lower. mathscinet.ams.org/mathscinet/f...
mathscinet.ams.org
MathSciNet
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Cody @codyroux.bsky.social · 11/07/2026
Tragically, falling into patterns that are hard to break out of, is a pattern that is hard to break out of.
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Reposted by Cody
John C. Baez @johncarlosbaez.bsky.social · 08/07/2026
Mark Ham wowed the world with this picture. But then someone wowed me even more by pointing out that the moon always has the same phase when it's in a rainbow! (1/2)
A closeup of a rainbow with the Moon in it.  The Moon is not full, it is gibbous.   This photo was taken by Mark Ham.   In this photo you can work out exactly where the sun is—behind him over his left shoulder—from both the position of the rainbow and from the phase of the moon.
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Cody @codyroux.bsky.social · 07/07/2026
Girls Just Wanna Have that plastic doohickey that allows you to re-seal opened plastic bags
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Cody @codyroux.bsky.social · 06/07/2026
Driving: the most boring of terrifying activities
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Cody @codyroux.bsky.social · 03/07/2026
Hi r/compilers! I've come up with a new language, that aspires to the readability of Python with the performance of C/C++. There's still a lot of work to do, but..
static.klipy.com
Lol
ALT: Lol
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Cody @codyroux.bsky.social · 01/07/2026
Most people live to be older than most people.
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Cody @codyroux.bsky.social · 26/06/2026
How dare I live the dream life of an intellectual from the XVIth century and still be so unsatisfied?
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Cody @codyroux.bsky.social · 25/06/2026
I'm really not crazy about the "fish climbing a tree" metaphor. Sucking at one thing doesn't make me good at another thing.
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Cody @codyroux.bsky.social · 25/06/2026
My examples? Simple, concrete, enlightening. You examples? Convoluted. Ad hoc. Unrealistic.
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Cody @codyroux.bsky.social · 24/06/2026
Apparently the secret to being a musician is practicing until you hate the piece
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Cody @codyroux.bsky.social · 23/06/2026
Wait is that to make *other people* happy?
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Cody @codyroux.bsky.social · 23/06/2026
I want to be the first mathematician to find a prime triplet.
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Cody @codyroux.bsky.social · 22/06/2026
New episode! Barriers in proofs of P vs NP is one of my favorite topics. Like, it's so difficult to prove we have a *theory* of how hard it is to prove! With @sandmouth.bsky.social open.spotify.com/episode/3o4V...
open.spotify.com
Complexity Barriers I: The Relativization Barrier
The Church of Logic · Episode
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Cody @codyroux.bsky.social · 21/06/2026
I was hanging with a bunch of people telling me that peer pressure is a myth. I guess so.
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Cody @codyroux.bsky.social · 21/06/2026
Would my wife really divorce me if I told her I thought Mama Mia was mid? Yes, absolutely.
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Cody @codyroux.bsky.social · 19/06/2026
Add it to the list of banger songs about insomnia. I guess that's when song writers write. youtu.be/6epzmRZk6UU?...
youtu.be
The Art of Noise with Max Headroom - Paranoimia (Official Video)
YouTube video by Art Of Noise
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Cody @codyroux.bsky.social · 17/06/2026
Martin Hoffmann, prescient.
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Cody @codyroux.bsky.social · 17/06/2026
Huh if you add "divides" as a symbol, quantifier free-arithmetic with just + over Z is decidable?! cstheory.stackexchange.com/a/48095/3984 That feels counter-intuitive.
cstheory.stackexchange.com
Decidability of diophantine equations over {=, +, gcd}
It is well-known that polynomial diophantine equations are undecidable (Hilbert's 10th problem): that is, given a quantifier-free formula over the language $\{=, +, \cdot, 1\}$ (of equality, additi...
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Cody @codyroux.bsky.social · 17/06/2026
"well educated", "classy" and "super rich" are three roughly disjoint sets
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Cody @codyroux.bsky.social · 12/06/2026
Wait Muzak is the name of an actual company!? en.wikipedia.org/wiki/Muzak
en.wikipedia.org
Muzak - Wikipedia
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Cody @codyroux.bsky.social · 11/06/2026
A lesson I learned the easy way, I guess: if you're a kind and engaged person, people will overlook incompetence. It's like a reverse House.
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Cody @codyroux.bsky.social · 11/06/2026
Hesitation is death. Overeagerness? Also death. Perfect timing? That's right, death.
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