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Freek Wiedijk

@freekwiedijk.bsky.social
388 followers 265 following 3.6K posts

🔑proofs⚙️dances🔥bodies⭐️dreams

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Reposted by Freek Wiedijk
rev. howard arson @theophite.bsky.social · 03/10/2026
one extremely funny thing is that under KL pinning the attractor state for "be helpful, kind, and honest, and do not assert that you are conscious" is anattā
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Thorne 🌸 @ens0.me · 02/10/2026
Please stop calling two computers establishing a connection a "handshake." A computer cannot shake hands because it does not have a body.
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Tom de Jong @de-jong-tom.mathstodon.xyz.ap.brid.gy · 01/10/2026
I've started my new job! As of today, I'm a postdoc in the Software Science group of the Institute of Computing and Information Sciences at Radboud University in the Netherlands. This position is (largely) funded by a personal 3-year Veni fellowship from the Dutch research organization NWO. I'm […]
mathstodon.xyz
Original post on mathstodon.xyz
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Freek Wiedijk @freekwiedijk.bsky.social · 02/10/2026
#sauna
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Freek Wiedijk @freekwiedijk.bsky.social · 01/10/2026
Later we will refer to this era as "when the LLMs were young" ☺️
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˗ˏˋ Jeanne ˊˎ˗🥵☀️ @janeprigent.bsky.social · 27/09/2026
J'ai aussi fait ce ptit corbeau sur un crâne ! 🐦‍⬛💀
Corbeau posé sur un crane, en linogravure, encre noir sur papier blanc
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Feriel فَرْيَال (ꈍ ᴗ ꈍ✿) @feriel.choutri.eu · 23/09/2026
How is Claude doing this session? (optional) 

1: Bad
2: Fine
3: Good
0: Dismiss
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Freek Wiedijk @freekwiedijk.bsky.social · 30/09/2026
Is there currently a huge LLM agent swarm somewhere that is working on making practical nuclear fusion happen?
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Mrs. Detective PikaBOO, Esq. @clapifyoulikeme.favrd.social · 28/09/2026
The snails They escaped their basket Yes YES The snails are out
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Freek Wiedijk @freekwiedijk.bsky.social · 28/09/2026
Wow
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Benji Smith @benjins.bsky.social · 28/09/2026
the upper end of highly-viewed Youtube videos tend to be music videos, I wanted to check what the most-viewed non-music video is. And it appears to be an unlisted video from 2022 titled "009 1225 GetInspiredOnGroups Crafts GLOBAL Acq EN UAC 1920x1080 21s Null FB M0 267" with ~8 billion views
en.wikipedia.org
List of most-viewed YouTube videos - Wikipedia
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Kazimir Malevich @kmalevich.bsky.social · 27/09/2026
Black Square and Red Square www.wikiart.org/en/kazimir-malevich…
Black Square and Red Square
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Freek Wiedijk @freekwiedijk.bsky.social · 26/09/2026
onbevangen, onbelast, en relatief onwetend
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Freek Wiedijk @freekwiedijk.bsky.social · 25/09/2026
my9games.net/en
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BoschBot @boschbot.bsky.social · 25/09/2026
The Last Judgment - Central
The Last Judgment - Central
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Freek Wiedijk @freekwiedijk.bsky.social · 25/09/2026
@jevbot.bsky.social will ZFC be proved inconsistent within a decade?
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tiremminnanz @dreadmco.bsky.social · 24/09/2026
Autovettura "Schlörwagen" (prog. Ing. Karl Schlör). Prototipo di veicolo aerodinamico la cui forma a goccia attirò l'attenzione al Salone dell'automobile di Berlino del 1939. Giudicata poco pratica, esteticamente sgradevole e insicura alla guida, non entrò mai in produzione di serie.
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Kustaw Bessems @kustaw.bsky.social · 22/09/2026
Snap dat dit iets heel kleins is, maar als bewijs dat je onzin kunt terugdraaien, dat je niet moet repareren wat niet kapot is, vind ik het toch een mooie verrassing www.at5.nl/artikelen/24...
at5.nl
Geen ITA meer maar 'gewoon' Stadsschouwburg: oude naam terug op de gevel
Stadsschouwburg op het Leidseplein Amsterdam draagt weer zijn oude naam na zes jaar als ITA. De naamswijziging bleek te verwarrend voor bezoekers. Lees het hele verhaal.
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Gro-Tsen @gro-tsen.bsky.social · 22/09/2026
Note that there is an explicit algorithm that, if 𝐏=𝐍𝐏 is true, solves any solvable instance of an 𝐍𝐏 problem (say, 3SAT) in polynomial time. It's just not very useful. See “Levin universal search”, www.scholarpedia.org/article/Univ... or www.reddit.com/r/math/comme... or bsky.app/profile/did:...
scholarpedia.org
Universal search - Scholarpedia
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Freek Wiedijk @freekwiedijk.bsky.social · 22/09/2026
I'm not sure about this. It's like the four color theorem, way back in the seventies: the "proof" doesn't give much insight, but it *is* nice knowing which way things lean. Me, I'm hoping for a non-constructive proof of P=NP 😁
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Xanthe van Lambtonworm 🐉️🎃️ @satyrs.eu · 21/09/2026
I’m trying out a policy where i can *like* whatever i want but for me to *retweet* something, thereby exposing all my followers to it, it has to be something that made me smile, rather than something that made me righteously angry. Highly recommend
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Aku | 少骨 | vgen open @akuicia.bsky.social · 20/03/2026
#oc
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Freek Wiedijk @freekwiedijk.bsky.social · 21/09/2026
I'm older now than Alec Guinness was when he played Obi-Wan ☺️
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Freek Wiedijk @freekwiedijk.bsky.social · 21/09/2026
The applause at the end is one of the silliest movie endings ever.
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walking mirage @wolf.observer · 21/09/2026
nothing hits wrong quite like the unsettlingly verbose GUI of a piece of vibecoded software
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Freek Wiedijk @freekwiedijk.bsky.social · 21/09/2026
How many people would be able to point out Baffin Island on a map?
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★ govert schilling @govertschilling.nl · 20/09/2026
zijn de spoorsaboteurs al opgepakt?
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Freek Wiedijk @freekwiedijk.bsky.social · 20/09/2026
Yes the difference between "icebreaker" (Kuang), "construct" (the Dixie Flatline) and "AI" (Wintermute and Neuromancer) always puzzled me, they all seemed similarly conscious entities, but the current models make this much more tangible to me. @greatdismal.bsky.social
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Freek Wiedijk @freekwiedijk.bsky.social · 20/09/2026
World map
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Freek Wiedijk @freekwiedijk.bsky.social · 20/09/2026
Are the big AI companies trying to get a Lean formalization out of Mochizuki’s proof of the ABC conjecture?
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Freek Wiedijk @freekwiedijk.bsky.social · 20/09/2026
This is actually something I think could be very nice 🥰
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Freek Wiedijk @freekwiedijk.bsky.social · 19/09/2026
AI force? 😁
static.klipy.com
Ryan Reynolds & Tj Miller: Deadpool 'YOU'RE IN'
ALT: Ryan Reynolds & Tj Miller: Deadpool 'YOU'RE IN'
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Nasty Comics 🔞 @nastycomics.eu · 19/09/2026
De Kwakstralen
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Freek Wiedijk @freekwiedijk.bsky.social · 19/09/2026
Hm! 🙄 b.mino.mobi/orbit
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Freek Wiedijk @freekwiedijk.bsky.social · 19/09/2026
De roeping van de AI is machine te zijn
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Tube Mapper- Luke Agbaimoni @tubemapper.bsky.social · 18/09/2026
All I see is Mondrian when I'm waiting for a train at Green Park!
Green park station looking like a Mondrian painting Mondrian painting
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Freek Wiedijk @freekwiedijk.bsky.social · 17/09/2026
In welke Suske en Wiske albums wordt ook weer de term "fiscaal hervormd" gebruikt? @deperfectepodcast.bsky.social
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Freek Wiedijk @freekwiedijk.bsky.social · 17/09/2026
"I see these inadequate write-ups as almost certainly a temporary annoyance and therefore not as a fundamental threat to mathematical practice or future mathematical understanding."
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Kevin Donoghue @donoghuek.bsky.social · 15/09/2026
Related...
New Yorker cartoon: Pandora opening the comments.
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Freek Wiedijk @freekwiedijk.bsky.social · 15/09/2026
michawertheim.substack.com/p/wat-te-doe...
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asker the gauche, glycojohn destroyer of carbs @johnbender.bsky.social · 12/09/2026
The verification of an OS kernel using a bespoke concurrent separation logic in roughly two months qualifies for me as a killer app/quality software and it marks the first time I’ve been really worked up about the state of AI. arxiv.org/abs/2609.04043
arxiv.org
Extending concurrent separation logic to the hardware level to verify the xv6 OS kernel on RISC-V with AI agents
MachCSL is a framework for verifying systems software, such as an OS kernel, on top of low-level semantics of a RISC-V computer, based on the Sail RISC-V semantics. The key idea behind MachCSL is to a...
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Fenner Tanswell @fennert.bsky.social · 12/09/2026
"The process is deliberately unhurried, but we will provide updates." www.claymath.org/news/navier-...
claymath.org
Navier-Stokes Announcement - Clay Mathematics Institute
The Millennium Prize Problems were unveiled by the Clay Mathematics Institute (CMI) at a meeting in Paris in 2000 to celebrate “The Universality of Mathematical Thought”. These problems encapsulate so...
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Freek Wiedijk @freekwiedijk.bsky.social · 12/09/2026
Toon 4 formative albums: albums die in een vroeg stadium je smaak definitief bepaalden, en graadmeter werden.
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Terence Tao @teorth.bsky.social · 11/09/2026
A group of 25 Fields Medalists, including myself, have made a joint declaration on Math and AI: mathandai.org . We welcome additional signatories. See also this article in the Economist announcing the declaration: www.economist.com/science-and-...
mathandai.org
Declaration — Math and AI
Read the declaration and add your name.
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David Eerdmans @davideerdmans.bsky.social · 11/09/2026
Maar schrijven jullie je tweets dan allemaal wél zelf?
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Gro-Tsen @gro-tsen.bsky.social · 20/07/2026
We might also compare AIs with the malevolent genie who grants you wishes but who will exploit any loophole to make the wish you ASKED FOR (and thought you wanted) not turn out to be the wish you ACTUALLY WANTED. •22/38
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Freek Wiedijk @freekwiedijk.bsky.social · 09/09/2026
The ultra still is orange 🤷
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Freya Blekman @freyablekman.bsky.social · 09/09/2026
Because he (in the choir) will be signing the standard model Lagrangean
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William Gibson @greatdismal.bsky.social · 08/09/2026
Released today! Special edition! I love it!
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Xanthe van Lambtonworm 🐉️🎃️ @satyrs.eu · 08/09/2026
Wait a minute How deep does this thing go??
Wikipedia infobox for Claude-Louis Navier, with “Claude” highlighted with a clickbait red circle
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