Matthew Feickert

Today my PhD student (for one last day) @orochman.bsky.social is defending his thesis on neural emulators. Check out his latest paper on sampling diffusion models under hard constraints arxiv.org/abs/2601.21033 (NeurIPS 2026)

BREAKING: Major shakeup in NSF leadership. Brian Stone, who has been performing the duties of NSF director since April 2025, is retiring on Dec. 31. Rebecca Keiser, who has been acting chief of staff, is also retiring, Oct. 31. Unclear who will replace Stone, since O'Neill's nom hasn't moved.

In response to the eMudhra / emSign certificate security incident we've published guidance for Python users to update CA certificates: discuss.python.org/t/informatio... #security #Python #pki

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#TIL about another nice Rust-ification of Unix utilities from @sharkdp.bsky.social: diskus - A minimal, fast alternative to 'du -sh'. github.com/sharkdp/diskus I of course am installing it from @conda-forge.org with ``` pixi global install diskus ```

Slightly blown away to learn that I've been using 'cf.' incorrectly for the past 15 years or so. I have both been writing it as "c.f." and also thinking that it meant "see also" not "compare". en.wikipedia.org/wiki/Cf.

”I hope this reflects on the really courageous people who joined me in the beginning of this project when no respectable conservative physicists would have joined me, but many talented people did, and that's why I'm here.” - physics laureate Francis Halzen speaking at today's prize announcement.

BREAKING NEWS The Royal Swedish Academy of Sciences has decided to award the 2026 #NobelPrize in Physics to Francis Halzen “for decisive contributions to the IceCube Neutrino Observatory and the discovery of high-energy neutrinos of astrophysical origin.”

Another Scikit-HEP paper in @joss-openjournals.bsky.social! Happy to have this out! :D

Just published in JOSS: 'Newtrinos.jl: A Julia Package for Global Analysis of Neutrino Data' https://doi.org/10.21105/joss.09644

marimo now supports @prefix_dev Pixi sandboxes! Share portable notebooks with dependencies beyond Python, including CUDA-enabled @PyTorch, ffmpeg and R. Already using Conda or Pixi? Bring your ecosystem to marimo’s reactive notebooks, with Conda and PyPI requirements saved alongside your code.

Wow, I just found out that our team has been scooped by Anthropic www.anthropic.com/research/yes... See the addendum of the post “How does it feel to be scooped by a machine?” written by my collaborator Lance Dixon (who was under NDA while checking the result)

Today I'm starting as the new Editor-in-Chief of @joss-openjournals.bsky.social. blog.joss.theoj.org/2026/09/dani... I can only do this because of the journal's incredible community and the work we've collectively done over our first 10 years. 🧵

Making coffee while traveling for work like a very normal person.

#SciPy2026 talks are up on YouTube now! www.youtube.com/@SciPy-Conf/... If you weren't able to attend the conference you can still watch all of the talks and if you did attend the conference but can't be in two place at once or were enjoying the hallway track you can catch up on all you missed! :D

From #CTAN: Lawrence Lee submitted the INSPIRE-HEP package. Version: 0.2 License: lppl1.3c Summary description: An INSPIREHEP × LaTeX interface for automatic reference management ctan.org/pkg/inspirehep #TeXLaTeX @inspirehep.net

"We should never forget that Dolly Parton chose not to be a billionaire."

RIP Dolly Parton. There are so many wonderful things to remember her for, but the one I like to bring up is all the work she did for childhood literacy. Probably its greatest advocate in our lifetimes. God bless Dolly Parton.

Yale is on the verge of cutting a deal with Trump to change its admission procedures. Reminder for any school dealing with Trump's extortion: You can't appease a tyrant. Surrendering to authoritarianism only invites more of it.

Bicycles are joy machines.

Proud of UW-Madison and the Madison area's showing with Genesis (even though my proposal wasn't selected). Happy to say that the Data Science Institute is supporting some of the successful proposals.

The full list of Genesis Proposals. I see @uwmadison.bsky.social mentioned 5 times as well as Realta Fusion, SHINE technologies, and a mention of TypeOne fusion. science.osti.gov/-/media/fund...

Following the update of the Principles of Open Scholarly Infrastructure (POSI, openscholarlyinfrastructure.org) to v2.0, @joss-openjournals.bsky.social has updated its commitment to the principles in blog.joss.theoj.org/2026/07/JOSS...

The Sprints are one of our favorite parts of the conference! 🎉 This is where many of us made our very first contribution to the Scientific Python ecosystem, thanks to the welcoming and friendly maintainers who make it easy to get involved. 🫶 Here's to all the new contributors started this week 💙

💛 That's a wrap on Day 1 of #SciPy2026! Today's tutorials covered Python fundamentals, LLM agents, GPU computing, causal inference, interactive notebooks, scientific web apps, and image analysis. 🚀 Looking forward to another full day of tutorials tomorrow!

Approaching ***300,000*** comments on the proposed OMB regulations on federal grants. TODAY IS YOUR LAST DAY, GET YOUR PERSONALIZED (NOT COPIED-AND-PASTED!) COMMENT IN BY NOON EST. www.regulations.gov/commenton/OM...

I've got a suitcase full of coffee, a brain full of computational workflows I'm excited to teach, and a heart full of excitement to see amazing colleagues and friends. Must be time for #SciPy2026!

New: The National Science Foundation is preparing to claw back some $500 million in funds from some of its core science programs in physics, math, computer science, and engineering in order to fund a project from the White House Office of Science and Technology Policy.

⚡ Tutorial Spotlight: Reproducible CUDA doesn't have to be complicated! Matthew Feickert, Ruben Arts & Katrina Riehl will show you how to easily create reproducible scientific and AI/ML environments that leverage GPU acceleration across multiple machines and platforms with Pixi. 🚀

Not true. In their list of grievances, the Founding Fathers complained that King George III was blocking colonial laws that would promote immigration and make it easier for foreign settlers to become citizens.

Our not-too-secret project allows Pixi to depend on packages built from source. Build graphs, multi-language support and more are handled transparently. Sounds great, doesn't it? Then let us finally introduce it officially! prefix.dev/blog/pixi-b...

The 25th annual #SciPy2026 conference is only two weeks away! Join us in Minnesota or virtually for a plethora of scientific Python talks, including the Physics and Astronomy track 👀 see the full schedule at scipy2026.scipy.org/schedule You can sign up here 👉 ti.to/scipy/scipy2026

So long #LHC and thank you for all the collisions 👋 Today, the Large Hadron Collider (LHC), the world’s most powerful particle accelerator, comes to the end of an extraordinary chapter in its scientific journey. Find out more: home.cern/cern-bids-fa...

📣 Last but not least 🥁🥁 🚀Meet our third keynote: Dr. Joseph H. Kennedy, Staff Scientist at the Alaska Satellite Facility & Geophysical Institute, UAF. He specializes in bridging the gap between scientists and software engineers, building ground-up Cloud and HPC data processing/analysis platforms 🙌

📣 And our second keynote speaker is 🥁🥁🥁🥁🥁🥁 🚀 Amber Case, founder of the Calm Tech Institute & Research Director at the Metagovernance Project. MIT & Harvard fellow dedicated to making technology work for humans, not the other way around! Catch her talk at #SciPy2026 🔗 scipy2026.scipy.org

📣 Meet our first keynote 🥁🥁 🚀 Thomas Caswell: Project Lead for Matplotlib & staff scientist at Brookhaven National Lab. 15+ years of scientific Python: from a 1-character patch to leading one of its most-used libraries 📊 Don't miss him at #SciPy2026 🔗 scipy2026.scipy.org

🎯 Tutorial Spotlight: Think everything is a for-loop? Think again. Jim Pivarski & Iason Krommydas show you how array-oriented thinking unlocks Python performance you didn't know was possible. Time to rethink the basics 🧠 #SciPy2026 🔗 scipy2026.scipy.org

🍺 Talk Spotlight: Paul is bringing the legendry with "Pun Intended Consequences", a hilarious romp through SciPy history, lightning talks, and the absurd wisdom that shaped our community 😄 #SciPy2026 🔗 scipy2026.scipy.org

🛠️ Talk Spotlight: Why does scipy use pixi.toml? Ruben explains how Pixi solves scientific Python's toughest dependency challenges; C++, Rust, CUDA, Fortran, all in one tool 🚀 #SciPy2026 🔗 scipy2026.scipy.org

Stop scrolling to the reference list. Stop squinting at figures. Curvenote Reader puts citations in context as you read. Figures zoom independently. References live where you need them. The research doesn't change. The experience does. Tell us what you think 👉 reader.openrxivlabs.org

🌲 Talk Spotlight: Jim shows how LiDAR + lightweight ML catches hidden gullies to prevent erosion and forest fires. See Numba tackle massive datasets with unconventional kernels. Real data, real impact. 🛰️ #SciPy2026 🔗 scipy2026.scipy.org

Thanks to Trump's tax cuts, 88 corporations — including Coinbase, CVS, and Disney — paid ZERO federal income tax last year. They also spent $852M on political donations and lobbying. Their combined tax savings: over $26 BILLION (a 3,000% ROI!) We must break this corrupt cycle.

⚛️ Talk Spotlight: Iason takes us inside CERN's petabyte data challenges. How is Python revolutionizing particle physics? 🐍 Discover the Scikit, HEP tools reshaping high, energy physics analysis. #SciPy2026 🔗 scipy2026.scipy.org

@zoekeating.com Thank you very much for releasing the "The Edge of All We Know" soundtrack! :D