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Bastian Grossenbacher-Rieck

@pseudomanifold.topology.rocks
2.2K followers 428 following 186 posts

Dad · Geometry ∩ Topology ∩ Machine Learning Professor at University of Fribourg 🇨🇭 · ELLIS Scholar 🇪🇺 🏠 bastian.rieck.me 🏫 aidos.group ☕️ ko-fi.com/pseudomanifold ⁉️ admonymous.co/pseudomanifold

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Bastian Grossenbacher-Rieck @pseudomanifold.topology.rocks · 25/09/2026
Happy to report that my lab has k #NeurIPS2026 publications. Since k is a large number, this means we are doing a good job and our science is great. Many even say it is _the best_ science. Thank you for your attention to this matter.
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Matt Enlow @unsolvedmre.bsky.social · 16/01/2025
#math #maths #mathed #iteachmath
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Bastian Grossenbacher-Rieck @pseudomanifold.topology.rocks · 24/09/2026
"But this I say, He which soweth sparingly shall reap also sparingly; and he which soweth bountifully shall reap also bountifully." — Paul, telling people to write fair #NeurIPS2026 reviews and decisions, probably (Good luck, y'all!)
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Astronomer Royal for Scotland | Catherine Heymans @astroroyalscot.bsky.social · 20/09/2026
NASA picture of the day today is a real 🏴󠁧󠁢󠁳󠁣󠁴󠁿beauty! This is a composite image of the ~5000yo Callanish Stones on the Isle of Lewis. The amazing Giuseppe Petricca has only gone and photographed the Sun at noon there, every few days, for a whole year. #Dedication 🔭🧪👌 ℹ️: science.nasa.gov/image-articl...
The imposing Callanish Stones stand talk with their shadows spanning out across the glass.  It's a super clear sky, but looks cold. Above the central stone is a strange figure-of-8 shape of dots.  This is the location of the Sun, at noon, on various different days across the year.
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Bastian Grossenbacher-Rieck @pseudomanifold.topology.rocks · 14/09/2026
💙It's postdoc appreciation week—here's to the often unsung heroes/heroines of academia! I count myself fortunate to work with two 2 excellent postdocs, Elena Wang & Inés García-Redondo. Thanks for your creativity and hard work. We are lucky to have you! 🙌 #PAWSwitzerland2026
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Bastian Grossenbacher-Rieck @pseudomanifold.topology.rocks · 13/09/2026
For a vibe-coded universe, the sunsets are pretty marvelous, I'll grant you that.
Sunset
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Bastian Grossenbacher-Rieck @pseudomanifold.topology.rocks · 13/09/2026
New blog post: A Barbarian’s Guide to Full-Disk Encryption with Arch Linux Despite using Linux for a long time, I still feel like a CLI barbarian. Here's my "simple" setup to make your system a bit more secure. (I use Arch, btw 😉) bastian.rieck.me/blog/2026/ar... #Linux
bastian.rieck.me
A Barbarian’s Guide to Full-Disk Encryption with Arch Linux
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Bastian Grossenbacher-Rieck @pseudomanifold.topology.rocks · 13/09/2026
Another reason to celebrate: @jeremy-wayland.bsky.social, founder & researcher extraordinaire, defended his PhD w/ distinction. It was a pleasure working with you, Jeremy. All the best for your future journey into the multiverse! #academia #MachineLearning
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Alexander Kasprzyk @amkasprzyk.bsky.social · 08/09/2026
“Why would you ruin your career? … If you don’t want me to be nice, then I don’t have to be nice.” Thuggish behaviour described on the part of OpenAI. As an academic, do you really want to be in the room with these people? Does what’s described here reflect your standards? #LLM #MathSky
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Bastian Grossenbacher-Rieck @pseudomanifold.topology.rocks · 03/09/2026
Friends, let's celebrate Ernst Röell today who just defended his PhD! His ideas & insights resulted in marvelous research questions. All the best for your future career, Ernst! It was a pleasure working with you & I hope our paths cross again. #academia #MachineLearning
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Josh Grant @joshgrant.online · 03/09/2026
Have some math sketches
A white sheet of paper stuck to a white wall. On it in black charcoal are a very rough donut shape with shading, a triangle next to a rectangle shape with a does not equal sign “geometry”, and a triangle with a rectangle shape with an equivalence symbol “topology
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Shane Liesegang, SJ @sjml.bsky.social · 26/01/2026
Today's procrastination was making a list of all the software and services I regularly use that have been annoying me and what alternatives I might consider if I find the motivation. (Ironically GitHub is one of them but here we are.)
github.com
GitHub - sjml/alternatives
Contribute to sjml/alternatives development by creating an account on GitHub.
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Bastian Grossenbacher-Rieck @pseudomanifold.topology.rocks · 02/09/2026
A paper with a quite misleading title is circulating on the former bird platform. This kind of engagement farming is really sad and makes authors lose credibility. I get it, you want people to read your work. Maybe write something interesting then? Truth matters...
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Shubhendu Trivedi @shubhendu.bsky.social · 02/09/2026
Academics becoming more active on LinkedIn is not good at all. Now all the craziness has a much wider audience.
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Shubhendu Trivedi @shubhendu.bsky.social · 02/09/2026
"My paper was rejected today. I am devastated. I questioned whether I belong in science. Here are 11 things I learned about resilience." And let me tell you, converting R2 into a hero's journey is the least harmful thing I am talking about.
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Bastian Grossenbacher-Rieck @pseudomanifold.topology.rocks · 01/09/2026
The Road goes ever on and on Down from the door where it began. Now far ahead the Road has gone, And I must follow, if I can, Pursuing it with eager feet, Until it joins some larger way Where many paths and errands meet. And whither then? I cannot say. #Switzerland
The road
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Bastian Grossenbacher-Rieck @pseudomanifold.topology.rocks · 30/08/2026
Swiss Sprawl (near Bern)
Swiss Sprawl
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Martin Huber @causalhuber.bsky.social · 26/08/2026
😀 I am pleased to share that our paper “Machine learning for detecting collusion and capacity withholding in wholesale electricity markets,” joint work with Ivan Marin and Jeremy Proz, has been published open access in Energy Economics: doi.org/10.1016/j.en...
doi.org
Redirecting
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Błażej Banaszewski @blazejba.bsky.social · 25/08/2026
Open PhD positions at the brand new interdisciplinary doctorate school at Max Planck Institute, led by Karsten Borgwardt. It's a condensation of talent and resources. A place to be if you want to make an impact at the intersection of AI and life sciences. www.maxplanckschools.org/572149/biome...
maxplanckschools.org
Max Planck School of Biomedical Artificial Intelligence
The Max Planck School of Biomedical Artificial Intelligence led by Karsten Borgwardt from the Max Planck Institute for Biochemistry aims to explore key scientific questions at the intersection of biom...
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Bastian Grossenbacher-Rieck @pseudomanifold.topology.rocks · 21/08/2026
New blog post: 👉 LLMs Are Proof That Unix Won 👈 A short exegesis on the Unix philosophy & why LLMs finally proved that "text reigns supreme." I've been using Unix-like OSes for the better part of my life now, and I love that these concepts are "vindicated." bastian.rieck.me/blog/2026/un...
bastian.rieck.me
LLMs Are Proof That Unix Won
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Steve Huntsman @stevehuntsman.bsky.social · 12/08/2026
Scientists try to sugar coat this shit but they should say, literally “the stuff you feel is bullshit, science shows it, and fuck your feelings if you don’t like it, you weakling”
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NeurIPS Conference @neuripsconf.bsky.social · 11/08/2026
We want to thank everyone who submitted a proposal and look forward to hosting the accepted workshops!
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NeurIPS Conference @neuripsconf.bsky.social · 11/08/2026
We are happy to announce the list of accepted NeurIPS 2026 workshops: blog.neurips.cc/2026/08/10/a... The workshops will take place on: - Fri Dec 11 and Sat Dec 12, 2026 – Sydney - Sat Dec 12 and Sun Dec 13, 2026 – Paris and Atlanta
blog.neurips.cc
Announcing the NeurIPS 2026 Workshops – NeurIPS Blog
Communication Chairs 2026 2026 Conference
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Bastian Grossenbacher-Rieck @pseudomanifold.topology.rocks · 05/08/2026
Melancholy-fueled insights on #NeurIPS2026: - Few reviewer responses; one was clearly copied-and-pasted from ChatGPT - Reviewers contradicting themselves, mentioning stuff that's not in the paper - 3/10 papers in my AC stack w/ hallucinated refs. Sic transit gloria mundi.
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Bastian Grossenbacher-Rieck @pseudomanifold.topology.rocks · 20/07/2026
New blog post, this time quite personal: "40 Bits of Advice That, in Murky Light, Might Pass as Wisdom" #AcademicBlogging bastian.rieck.me/blog/2026/40/
bastian.rieck.me
40 Bits of Advice That, in Murky Light, Might Pass as Wisdom
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LOGML Summer School @logml.bsky.social · 15/07/2026
Part 2/2: A huge thank you to our speakers, mentors, participants and sponsors. Looking forward to more exciting talks, projects, and social events over the coming days! #MachineLearning #GeometricDeepLearning #SummerSchool
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LOGML Summer School @logml.bsky.social · 15/07/2026
Part 1/2: 🚀 Two incredible days at #LOGML2026! ☕ Registration & welcome breakfast 🎤 Inspiring talks 📌 Poster session 🧗 Bouldering social ⚽ Football, food & great conversations It's been amazing to see researchers from around the world exchanging ideas and building collaborations.
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Irving Institute for Cancer Dynamics @cancerdynamics.bsky.social · 10/07/2026
New 📘 in @pnas.org: A new visualization method developed by IICD researchers in the Blumberg grp could improve the analysis of high-dimensional datasets and help scientists identify new cell types: bit.ly/4eZqbCF @columbiaseas.bsky.social @columbiacancer.bsky.social @pseudomanifold.topology.rocks
Headshots of Tristan Saidi (left), Abigail Hickok (center), and Andrew Blumberg (right)
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Patrick Schnider @schnpatr.bsky.social · 03/07/2026
I recently learned that my research was featured in an article in the Süddeutsche Zeitung on math for cutting pizzas www.sueddeutsche.de/projekte/art... It‘s unfortunately paywalled, if you want a copy dm me :)
sueddeutsche.de
Wie man mit Mathematik eine Pizza aufteilt
So teilt man Essen gerecht, auch wenn die Esser unterschiedliche Dinge mögen – oder im Hyperraum unterwegs sind.
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ELLIS @ellis.eu · 02/07/2026
The ELLIS Annual Report 2025 is out now, providing a comprehensive overview of our efforts to secure European sovereignty in AI through scientific excellence and cross-border institutional collaboration. 👉 Download the full Annual Report 2025 here: bit.ly/4azeyAV
The ELLIS Annual Report 2025 is out now
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Shane Liesegang, SJ @sjml.bsky.social · 02/07/2026
(but I am not someone who insists on the title, so if you have ever been someone who calls me simply "Shane" I would love you to continue to do so)
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Shane Liesegang, SJ @sjml.bsky.social · 02/07/2026
(I have developed a knee-jerk response of correcting people calling me "Father Shane" because they've incorrectly done so for *YEARS* and the instinct still kicks in before I have to be like "oh, wait, no, NOW that's appropriate")
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Shane Liesegang, SJ @sjml.bsky.social · 02/07/2026
a) still getting used to being called "Father Shane" b) *especially* weird to call someone and introduce myself as "Father Shane" c) I have adopted the zoomer slang of "fr" as "for real" c.5) abbrevation is "Fr. Shane" d) (I read it as "for real, Shane") e) texting a fellow priest, I said "fr, fr."
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Michael Bleher @subthaumic.bsky.social · 01/07/2026
Wonderful to see the GTML 2025 proceedings out in the world. My thanks to the co-organizers, the speakers and authors, and everyone who took part in Leipzig. It was a privilege to bring you all together. #geometry #topology #machineLearning
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Bastian Grossenbacher-Rieck @pseudomanifold.topology.rocks · 30/06/2026
So glad I was permitted to contribute to this. A truly wonderful workshop by Michael Bleher and many others. Thanks for having me! #geometry #topology #machineLearning
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LOGML Summer School @logml.bsky.social · 18/06/2026
📣 LOGML'26 Speaker Series 🎤 @PascalWelke (Lancaster University Leipzig, TU Wien) He combines graph mining and graph theory to develop expressive graph representations. 📍Imperial College London 📅13–17 July 2026 🔗 logml.ai #LOGML #SummerSchool #GeometricML
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Bastian Grossenbacher-Rieck @pseudomanifold.topology.rocks · 09/06/2026
With more and more proofs being coauthored by AI, I am often reminded of this wonderful short story: www.uncannymagazine.com/article/proo...
uncannymagazine.com
Proof by Induction - Uncanny Magazine
Paulie rushes out the elevator doors the moment they part, only to skid to a halt at the sight of his father’s wife. She shakes her head, but he doesn’t need the confirmation. If Tricia is out here an...
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Shane Liesegang, SJ @sjml.bsky.social · 06/06/2026
this is a link you can click to watch me (and several other Jesuits!) get ordained to the priesthood in the near future if that is the kind of thing you think you might like to watch
youtube.com
Jesuits West Celebrates 2026 Ordination
With gratitude to God, the Society of Jesus announces the Ordinatio...
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Shane Liesegang, SJ @sjml.bsky.social · 08/06/2026
some more media spots from which I feel obliged remove the previews because they're using the same enormous picture of my face but if you want to read about me or listen to me talk here you go Jesuits profile: www.jesuits.org/profile/shan... AMDG Podcast: open.spotify.com/episode/6xfS...
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Bastian Grossenbacher-Rieck @pseudomanifold.topology.rocks · 03/06/2026
New blog post: Some Comments on “Magnifica Humanitas” In which I comment on the recent encyclical by Pope Leo XIV from the perspective of a machine learning researcher. bastian.rieck.me/blog/2026/ma...
bastian.rieck.me
Some Comments on “Magnifica Humanitas”
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Bastian Grossenbacher-Rieck @pseudomanifold.topology.rocks · 01/06/2026
Is it an unwritten rule that frontier AI companies have to pick their name out of Tolkien's legendarium? What comes after "peak Tolkien?" Star Wars? Game of Thrones? Something else?
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Carl Freeman @gatekeeper0077.bsky.social · 30/05/2026
The hike vs helicopter framing assumes choice. For dyslexics & ADHDers like me, AI is the wheelchair, not the helicopter; not skipping the climb, making the climb possible. Your 'cannot abdicate responsibility' line holds. carlmfreeman.substack.com/p/nobody-kno...
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Bastian Grossenbacher-Rieck @pseudomanifold.topology.rocks · 29/05/2026
New blog post: Scholarship in the Age of AI In which I use the recent debate on arXiv policies to ponder what it means to be a scholar now. Feedback always welcome! #Academia #AI bastian.rieck.me/blog/2026/sc...
bastian.rieck.me
Scholarship in the Age of AI
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Bastian Grossenbacher-Rieck @pseudomanifold.topology.rocks · 28/05/2026
After a certain age, discovering new music gets harder. Siri didn't understand my query, said "Hold my beer!", and served me "Birdie" by "NOVA Rei." (Can you guess what I wanted to listen to originally?)
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Bastian Grossenbacher-Rieck @pseudomanifold.topology.rocks · 27/05/2026
Did anyone else notice a move of generic AI slop to platforms like Zenodo? I used to get endorsement requests for arXiv, which I did not feel comfortable with, and now I am noticing more and more "weird stuff" (consciousness + topology + quantum whatever) hosted on Zenodo.
media1.giphy.com
https://media1.giphy.com/media/NTur7XlVDUdqM/200.gif
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Bastian Grossenbacher-Rieck @pseudomanifold.topology.rocks · 26/05/2026
Gladiator vibes...good evening, y'all!
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Bastian Grossenbacher-Rieck @pseudomanifold.topology.rocks · 26/05/2026
Some respite before the heat starts again. Good morning, everyone!
Good morning
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Shane Liesegang, SJ @sjml.bsky.social · 19/05/2026
Remember when I was first becoming a Jesuit and gave away a bunch of my stuff? Well here's your chance again! All of this is free to a good home if you pay shipping. (Note the Majora's Mask has a cracked case.) DM me if you are interested. Serious inquiries only! Needs to go in the next week-ish.
in a box: an original Super Nintendo Entertainment System, an N64, associated cables for the systems, three GameCube controllers, an N64 controller, and at least one SNES controller (might be another in there)in a box: 

## NES cartridges
* Mega Man 2
* Mega Man 3
* Mega Man 4

## SNES cartridges
* NHLPA Hockey
* Zelda: Link to the Past
* Final Fantasy III
* Donkey Kong Country
* Street Fighter II Turbo
* Starfox

## N64 Cartridges
* Zelda: Ocarina of Time
* Zelda: Majora's Mask
* Resident Evil 2
* Super Mario 64
* GoldenEye 007in a box: an original Wii console + cables, three steering wheels, a number of Wii Remotes and nunchuk attachements, and a couple classic controllers
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LOGML Summer School @logml.bsky.social · 20/05/2026
📣 LOGML'26 Speaker Series 🎤 Soledad Villar @soledadvillar.bsky.social (Johns Hopkins) Her research spans equivariant ML, GNNs, with applications to computational biology. 📍 Imperial College London 📅 13–17 July 2026 🔗 www.logml.ai #LOGML #GraphML #GeometricDeepLearning #SummerSchool
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Bastian Grossenbacher-Rieck @pseudomanifold.topology.rocks · 19/05/2026
The Boston TAG Party (August 18–20) is open for submissions! openreview.net/group?id=TAG... Submit your work in topology, algebra, and geometry.
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