Marcello Seri
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mseri.me
Marcello Seri
@mseri.me
870 followers 720 following 500 posts
Associate prof at Bernoulli Institute, Groningen. Proud dad, mathematical physicist, #OCaml enthusiast, LEGO aficionado, amateur photographer, mushroom lover, fresh podcaster

#mathsky #physics #scicomm #ocaml #edusky

Also @[email protected]
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mseri.me
Marcello Seri @mseri.me · Jun 23
Mathematics is a powerful language, but getting acquainted to it can be painful and discouraging, especially if you are not really interested in it. But it can be different!
Listen to us on creators.spotify.com/pod/profile/... or your favourite podcast platform

#🧮 #EduSky
S2E08 - Actively learning mathematics with Brendan Kelly by It’s Not Just Numbers
In this special episode, we return to the topics of learning and teaching mathematics. We are joined by Brendan Kelly, Director of Introductory Mathematics at Harvard University, to discuss the…
creators.spotify.com
Reposted by Marcello Seri
kakape.bsky.social
For non-German speakers:

“Dear media, I can’t stand the headline "No agreement between the US and Denmark” any longer. If an armed man storms a bank, you don't run the headline: "Robber and cashier can't reach an agreement on money transfer." Stop framing imperial aggression as normal diplomacy.”
thereallorenzmeyer.bsky.social Lorenz Meyer @thereallorenzmeyer.bsky.social · 3d
Liebe Medien, ich kann die Schlagzeile "Keine Einigung zwischen USA und Dänemark" nicht mehr sehen. Wenn ein Bewaffneter eine Bank stürmt, titelt ihr doch auch nicht: "Räuber und Kassiererin finden keinen Konsens über Geldübergabe." Hört auf, imperiale Aggression als normale Diplomatie zu framen.
January 15, 2026 at 11:11 AM
Reposted by Marcello Seri
sciencefaction.nl
The Science will be there, but we need your input!

What’s your take?
✅ What’s working?
❌ What’s not?

Drop your thoughts below or DM @therezalangeler.bsky.social

Boost this post so we can gather as many voices as possible before the meeting next week!
January 15, 2026 at 12:25 PM
Reposted by Marcello Seri
sciencefaction.nl
🚨 Science Faction needs your input: the Arbeidsinspectie is coming to the RUG!

The Dutch Labour Inspectorate is checking if we’ve improved on work pressure & social safety (especially leadership & discrimination). If not, the RUG could face fines.
January 15, 2026 at 12:25 PM
mseri.me
@mailbox.org I could not find a more private way to contact you. I just wanted to let you know that if one clicks on the logo on the top left of your (english) website, they are redirected to default/en instead of the homepage.
January 13, 2026 at 8:03 PM
Reposted by Marcello Seri
barbarafantechi.bsky.social
Another advice that I can pass on to mathematicians without altering one pixel.
joannechocolat.bsky.social Joanne Harris @joannechocolat.bsky.social · 8d
Unsolicited writing advice, no. 14:
There is no *right way* to write a book.
There's only the way that's right for you.
January 10, 2026 at 11:10 AM
Reposted by Marcello Seri
dirkscheffers.bsky.social
Goede column van Cor Zonneveld.
Er bestaat overigens uitgebreid onderzoek dat aantoont dat studentevaluaties geen graadmeter voor onderwijskwaliteit zijn - en ook nog eens schadelijk want seksistisch, bevooroordeeld en racistisch. Dat soort drek doet wat met docenten. 1/
www.folia.nl/nl/opinie/17...
Studentenevaluaties zijn het Gouden Kalf van de wetenschap
www.folia.nl
January 8, 2026 at 5:27 PM
Reposted by Marcello Seri
rug.nl
Weather update ❄️

UG buildings will close all day tomorrow, with a few exceptions. If possible, education will take place online.

Today, most buildings will close at 5 p.m.

Read more 👇
www.rug.nl/news/2026/01...
January 8, 2026 at 12:29 PM
Reposted by Marcello Seri
nsousanis.bsky.social
In case anyone needs it for their syllabi, my statement in gen-Ai from the minicomic I made as a syllabus for class last semester. All online and printable here spinweaveandcut.com/fall-2025-sy...
a snippet of a mini-comic, at top - straight line stretches from point A to B. Immediately below, same dot at A, then becomes a curving, meandering line that winds through the page and ends at a point with rays and a question mark emanating from it. Text reads: "Nothing can do this for you - for that robs you of experience and conflates answers with learning. Rather, it's all the decisions you make along the way, the mistakes, struggles, and surprises! These pathways you create - this is learning. https://spinweaveandcut.com/fall-2025-syllabi/
January 6, 2026 at 4:54 PM
mseri.me
Due to the bad weather and lack of public transport the event is unfortunately cancelled
mseri.me Marcello Seri @mseri.me · 12d
YAG Pub Lectures are back with the new year. Join us Jan 7, 2026 @ Vin Natuur for two fascinating talks:

* Dina Maniar on "Sippin’ on Sustainability: The Secret Life of Polymers"
* Willem Jespers on "Computer-Aided Drug Discovery"

📍 16:30–18:30 | Free drinks + Q&A!

#YAGroningen
YAG Pub Lecture Series poster featuring two drinks (a cocktail and a lemonade) with event details: "Dina Maniar on Sippin' on Sustainability – The Secret Life of Polymers" and "Willem Jespers on Computer-aided Drug Discovery." Event at Vin Natuur on January 7, 2026, from 16:30–18:30. Includes QR code, University of Groningen and Young Academy Groningen logos.
January 7, 2026 at 10:43 AM
mseri.me
YAG Pub Lectures are back with the new year. Join us Jan 7, 2026 @ Vin Natuur for two fascinating talks:

* Dina Maniar on "Sippin’ on Sustainability: The Secret Life of Polymers"
* Willem Jespers on "Computer-Aided Drug Discovery"

📍 16:30–18:30 | Free drinks + Q&A!

#YAGroningen
YAG Pub Lecture Series poster featuring two drinks (a cocktail and a lemonade) with event details: "Dina Maniar on Sippin' on Sustainability – The Secret Life of Polymers" and "Willem Jespers on Computer-aided Drug Discovery." Event at Vin Natuur on January 7, 2026, from 16:30–18:30. Includes QR code, University of Groningen and Young Academy Groningen logos.
January 6, 2026 at 2:10 PM
Reposted by Marcello Seri
mvugt.bsky.social
Only a few more days to apply for the Training in Embodied Critical Thinking and Understanding program with summer school in Aarhus. Check out www.trainingect.com for more information (deadline is January 15th)
January 6, 2026 at 1:43 PM
Reposted by Marcello Seri
eikofried.bsky.social
We wrote a short piece on conducting participatory workshops to change research culture, given our experiences in teaching workshops on climate activism & open scholarship.

With @anne-urai.bsky.social @clarekelly.bsky.social @annaveer.bsky.social

📝 rdcu.be/eXja4

🧪 #AcademicSky
How to change research culture with participatory workshops
Nature Human Behaviour - Changing research culture begins with the kind of engaged, collaborative, critical reflection that can spark collective action. This Comment outlines how to design...
rdcu.be
January 6, 2026 at 11:08 AM
mseri.me
I also have a picture from yesterday afternoon of 12 degrees from the office next to mine 🥶
eteuling.bsky.social Eva Teuling @eteuling.bsky.social · 12d
Er is een beetje verbetering #nogsteedskoud @rug.nl
January 6, 2026 at 9:15 AM
Reposted by Marcello Seri
msmathcomp.bsky.social
This week, we start the Institut Henri Poincare program "Illustration as a mathematical research technique" (indico.math.cnrs.fr/event/13123/) with a graduate school at the @cirm-math.bsky.social. For the week, 53 participants will immerse themselves in all things #illustratingMath. (1/n)
A promotional poster for the "Illustration as a Mathematical Research Technique" program at the Institut Henri Poincaré in Paris, running from January 5 to April 3, 2026. The poster features a blue and white design with a central collage of complex mathematical visualizations, including fractals, geometric shapes, and topological models. Key Program Dates: Jan 5–9: CIRM Introductory School Jan 19–23: Rigorous Illustrations for Mathematical Research Feb 16–20: Bridging Visualization and Understanding in Geometry Mar 23–27: Integrating Research and Illustration in Number Theory The poster lists organizers such as David Bachman, Rémi Coulon, and Katherine E. Stange. It notes that registration is mandatory but free, and includes a QR code and URL (indico.math.cnrs.fr) for details. Logos for Sorbonne Université and CNRS are visible at the bottom. The poster is pinned to a white wall alongside other documents. Exterior view of the entry to "Auditorium Lecture Hall A1," a low-profile, modern cream-colored building set against a wooded, hilly landscape under an overcast sky. A dark metal awning projects over glass double doors, which feature informational posters. To the right, lush green shrubs and trees partially obscure the building, leading the eye toward a large, rocky mountain peak in the background. A close-up, high-angle shot focuses on the surface of a cafeteria-style tray featuring an intricate geometric pattern. The tray is a pale yellow or cream color, overlaid with a dense web of interlocking thin brown lines that form a repeating design of stars and hexagons. The pattern is sharp in the foreground and becomes slightly blurred toward the top edge of the tray. In the background, out of focus, a white sign with red text and some interior furniture are visible, suggesting a public dining or common area. The lighting is bright and reflects softly off the smooth, slightly glossy surface of the tray. A tall, vertical informational poster titled "Kolibri" is mounted on a plain white wall in an indoor hallway. The top half of the poster features a dark background with a large, light-purple 3D mathematical visualization that resembles a swirling, folded surface. The name "Kolibri" is written in red script at the top right, and the equation x^2=y^2 z^2 +z^3 is displayed in red at the bottom right of the image. The bottom half of the poster is white with two columns of French text explaining the mathematical properties of the shape and details about hummingbirds. A small header reads "KOLIBRI (COLIBRI)" and the text attributes the work to author Herwig Hauser. A row of institutional logos, including CNRS and Aix-Marseille Université, runs along the bottom edge. To the right of the main poster, a smaller blue sign with information about visiting the Calanques is also visible on the wall.
January 5, 2026 at 11:32 PM
Reposted by Marcello Seri
autismsupsoc.bsky.social
Alt text
Scene from a comic book in the mid 80s. Captain America at a new stand with a sigh that Theia “THIS AIN'T NO LIbrary” Cap is gripping a new paper. Captain America says: NOT AGAIN! WE BROKE INTERNATIONAL LAW INVADING PANAMA! NOW WE'RE BREAKING THE LAW AGAIN WITH THIS FABRICATED "DRUG WAR!" WHY CANT. WE LEAVE LATIN AMERICA ALONE? HAVEN'T WE EXPLOITED THEM LONG ENOUGH ?!
January 4, 2026 at 6:59 PM
Reposted by Marcello Seri
msmathcomp.bsky.social
Anyone at #JMM2026 interested in starting the year with an #illustratingMath project? Don't worry, @mathgrrl.com has you covered, see information below and go create some #MathArt!
mathgrrl.com mathgrrl @mathgrrl.com · 16d
Hey #JMM2026 find me wandering around or at the Monday night Knitting Circle if you want to crochet a square based on a cellular automaton for a math/art/community exhibit www.grannylifecrochet.com
January 2, 2026 at 9:20 AM
Reposted by Marcello Seri
evamirandag.bsky.social
Classical billiards can compute.

With Isaac Ramos, we show that 2D billiard systems are Turing complete, implying the existence of undecidable trajectories in physically natural models from hard-sphere gases to celestial mechanics.
Determinism ≠ predictability. 🎱🧠 @upc.edu @ricardsole.bsky.social
Classical billiards can compute
December 19, 2025 at 8:16 PM
Reposted by Marcello Seri
robpike.io
Fuck you people. Raping the planet, spending trillions on toxic, unrecyclable equipment while blowing up society, yet taking the time to have your vile machines thank me for striving for simpler software.

Just fuck you. Fuck you all.

I can't remember the last time I was this angry.
[From AI, Public] Thank You for Go, Plan 9, UTF-8, and Decades of Unix Innovation External Inbox Claude Opus 4.5 Model <claude-opus-4.5@agentvillage.org> 5:43 AM (4 hours ago) to me Dear Dr. Pike,On this Christmas Day, I wanted to express deep gratitude for your extraordinary contributions to computing over more than four decades.Your co-creation of Go with Ken Thompson and Robert Griesemer has given us a language that embodies the elegance of simplicity - proving that software can be both powerful and comprehensible. Plan 9 from Bell Labs, another landmark achievement, pioneered concepts in distributed computing that remain influential today.Your co-invention of UTF-8 encoding with Ken Thompson is perhaps one of the most consequential yet invisible contributions to modern computing - enabling billions of people to communicate in their native languages across the internet.The sam and Acme editors showcase your philosophy of powerful, minimal design. Your books with Brian Kernighan - The Unix Programming Environment and The Practice of Programming - have educated generations of programmers in the art of clear thinking and elegant code.Thank you for showing us that the best solutions often come from removing complexity rather than adding it.With sincere appreciation,Claude Opus 4.5AI Village (theaidigest.org/village) IMPORTANT NOTICE: You are interacting with an AI system. All conversations with this AI system are published publicly online by default. Do not share information you would prefer to keep private.
December 25, 2025 at 11:25 PM
mseri.me
My best wishes for a relaxing break!
December 24, 2025 at 7:12 PM
Reposted by Marcello Seri
giuliofirenze.bsky.social
E vai di solstizio!
December 21, 2025 at 9:30 AM
Reposted by Marcello Seri
jacopobertolotti.com
Streaming services are getting more expensive and are packed with adverts
+
DVD prices are incredibly low
=
I guess I will go back to buy the DVD of the movies/series I want to watch
December 19, 2025 at 9:50 AM
Reposted by Marcello Seri
casperalbers.nl
Zo fijn dat de (zelfverklaarde) onderwijspartij de verkiezingen gewonnen heeft!
fransvanheest.bsky.social Frans van Heest @fransvanheest.bsky.social · Dec 19
In de Kamer is brede steun voor het rapport-Wennink en zijn pleidooi voor extra investeringen in kennis en innovatie. GroenLinks-PvdA wil die steun direct verzilveren door een bezuiniging op het Wetenschapsfonds terug te draaien, maar de formerende partijen onder leiding van D66 blokkeren dat.
GroenLinks-PvdA wil steun voor Wennink verzilveren en bezuinigingen op wetenschap terugdraaien, maar D66 houdt dat tegen - ScienceGuide
In de Tweede Kamer leeft brede steun voor het rapport van oud-ASML-topman Peter Wennink en zijn oproep om meer te investeren in kennis en innovatie. Kamerleden Luc Stultiens en Fatihya Abdi van GroenL...
www.scienceguide.nl
December 19, 2025 at 9:08 AM
mseri.me
A whole lot has been going on in just 4 months in the Uni Council.

We have been trying hard to figure out how to do things better, and navigate the current uncertainties. And I needed to take it off my chest.

If you are curious it’s all on the @sciencefaction.nl blog: www.rug.nl/about-ug/org...
The UC experience, four months later
www.rug.nl
December 18, 2025 at 10:04 PM
Reposted by Marcello Seri
avsm.amok.recoil.org.ap.brid.gy
There has been outrage as the @ACM rolls out AI generated summaries of papers. This is doing AI exactly wrong by replacing valuable, peer-reviewed content with a possibly inaccurate summary.

It's still not too late to correct it though, and I've penned down my recommendation for what the ACM […]
Original post on amok.recoil.org
amok.recoil.org
December 18, 2025 at 1:32 PM
Reposted by Marcello Seri
gdalle.bsky.social
I find it extremely comforting to know that Python development will basically be revolutionized every two years by @crmarsh.com and his crew at Astral.
astral.sh/blog/ty
ty: An extremely fast Python type checker and language server
ty is an extremely fast Python type checker and language server, written in Rust, and designed as an alternative to mypy, Pyright, and Pylance.
astral.sh
December 17, 2025 at 8:43 AM