Sign in

Joshua Grochow

@joshuagrochow.bsky.social
2.6K followers 526 following 2K posts

Research: TheoryCompSci, pure math, complex systems Other: climate; covid; equity, inclusion, & accessibility Assoc. Prof. @ CU Boulder Comp. Sci. & Math Views my own @joshuagrochow@mathstodon.xyz (& prev twitter) home.cs.colorado.edu/~jgrochow

PostsRepliesMedia
Reposted by Joshua Grochow
Emily M. Bender @emilymbender.bsky.social · 5h
Software engineering could and should be done with the same care as any other type of engineering. This is a post in honor of Margaret Hamilton (and also a subtweet of all vibe-coders everywhere).
Screencap

"“I fought to bring the software legitimacy so that it — and those building it — would be given its due respect, and thus I began to use the term ‘software engineering’ to distinguish it from hardware and other kinds of engineering, yet treat each type of engineering as part of the overall systems engineering process,” Hamilton told El Pais in 2018. “When I first started using this phrase, it was considered to be quite amusing. It was an ongoing joke for a long time. They liked to kid me about my radical ideas. Software eventually and necessarily gained the same respect as any other discipline.”"

Source: https://news.mit.edu/2026/margaret-hamilton-computing-pioneer-dies-1007
4420118
Reposted by Joshua Grochow
Kasey Gifford @kaseygifford.bsky.social · 10h
To put this in perspective chestnut trees used to be dominant species in the United States. Billions of trees were killed by fungal blight and now fully grown America chestnuts are functionally extinct. There is no getting them back. Ever. All for a data center. www.gadgetreview.com/one-of-ameri...
gadgetreview.com
One of America’s Last Chestnut Groves Is About to Be Destroyed for a Data Center
A rare 200-tree American chestnut grove in West Virginia may be cleared for data-center development, but the project denies the site is on its land.
4821771380
Reposted by Joshua Grochow
Butlerian Jihadist of House Dornick @shimminykricket.blacksky.app · 4h
Harvard just dropped a study AI productivity in software engineering and it found the average increase in productivity from using Claude code is.....zero and for exactly the reasons you'd think fion.ac/jellyfish.pdf
242049724
Reposted by Joshua Grochow
Antonio E. Porreca 🐳 @aeporreca.org · 8h
The Association for Human Mathematics (AHM) statement on OpenAI’s October 6 release of mathematical documents just dropped! www.ahmath.org/statements
AHM Statement on OpenAI’s October 6 Release of Mathematical Documents

Yesterday, on October 6th, 2026, OpenAI – which is currently defending lawsuits against accusations of illegal plagiarism, copyright infringement, and trademark dilution – released a repository of manuscripts purporting to contain solutions to a number of high-profile problems in mathematics.

Mathematicians did not ask for this work to be done. The Advisory Group on Mathematics and Artificial Intelligence, from whom OpenAI has claimed to derive its legitimacy, opened their initial advisory statement by saying that frontier AI corporations should not test advanced mathematical problems on internal models. In ignoring the central premise of the Advisory Group’s position, OpenAI has indicated total disregard for the norms of scientific research — norms that guarantee that mathematics remains trustworthy, ethically researched, and in the public interest.

Mathematicians have a particular vision of progress that is informed by history and field-specific considerations. We reject OpenAI's assertion that this release advances our subject, and we urge mathematicians and the public to view the value of this publication model with due skepticism. 

Releasing over 700 files at once is not a demonstration of scholarship, but a demonstration of power. We urge mathematicians to discontinue their work with OpenAI and to return to a vision of science that centers human understanding.

Association for Human Mathematics
Communications Working Group
9208109
Reposted by Joshua Grochow
autumn rain @slitherpunk.bsky.social · 11h
the exact perfect thing you want to see after the company demanded more of your personal information
127371299
Reposted by Joshua Grochow
Dr Abeba Birhane @abeba.blacksky.app · 19h
you don’t hold "AI" accountable; you hold AI developers, vendors, and corporations that profit off it accountable holding "AI accountable" is like holding a toaster accountable. it's an inanimate object. it doesn't have wishes, feelings, or desires
281577496
Reposted by Joshua Grochow
heidi goodson @goodsiephd.bsky.social · 13h
#MathSky I'm in search of math journals that have guidelines for authors regarding AI disclosures. Please send suggestions. thx!
478
Joshua Grochow @joshuagrochow.bsky.social · 14h
Can one do "algebraic geometry" over a monoid in place of the coordinate ring? That is, suppose I have a commutative monoid. Is there a coherent (in the informal sense) notion of Zariski topology? Do prime ideals work how I would hope they do based on CRing? Or similar. #MathSky
3123
Reposted by Joshua Grochow
PPK, the Kwisatz Haskellach, Monad'Dib @ppkfs.bsky.social · 15h
we [in the software industry] were told pretty much the same thing a year ago and it turns out you can simply choose to not accept this outcome
2231
Reposted by Joshua Grochow
Antonio E. Porreca 🐳 @aeporreca.org · 07/10/2026
Finally, animé par le sentiment de l’urgence, I wrote my own AI statement. Yes, it’s radical. Yes, it will probably make me even less popular among my colleagues, if anyone reads it at all. But I really believe we owe this to our students and our “junior” colleagues.
aeporreca.org
Why we should reject AI in academia
I just woke up and discovered that OpenAI has finally released those mathematical “results” they’ve been bragging about lately. We’re talking about 722 “papers” written by their private LLM or somethi...
44818
Reposted by Joshua Grochow
singular locus sarah @scgriffith.bsky.social · 07/10/2026
again, really hope working mathematicians put the pieces together and realize the fundamental threat from ai companies has little to do with transforming practices or modes of mentorship. they want a death grip on funding and employment in the discipline. it's what they want with everything
411333
Joshua Grochow @joshuagrochow.bsky.social · 07/10/2026
When LLMs solve a math research problem, they are stealing the possibility of someone to learn from the *process* of solving that problem, experiencing joy in its discovery & solution, bringing their own viewpoint & understanding to the problem, and exploring new related problems along the way.
2372
Reposted by Joshua Grochow
Clément Canonne @ccanonne.github.io · 05/10/2026
This point regarding AI-produced proofs is of course not new, but is beautifully put here. www.quantamagazine.org/is-ai-the-en... @quantamagazine.org
It’s as if you were teleported to the peak of a tall mountain. Surrounded by fog, you have no idea where you are, or what’s around you. You do not know how your mountain connects to others, and you have no equipment to help you explore, no way to help someone else join you. If you had climbed the mountain yourself, you would have experienced how the human body adapts to altitude and changes in oxygen levels. You might have had to invent tools to navigate, to climb steep cliffs, or to make a shelter. You might have encountered a fellow explorer, gotten lost together in a hidden valley, and found a plant that could be turned into a life-saving medicine.

Instead you’re perched on the peak but in the dark, while the maker of the teleportation machine tells you that it can explore the wilderness better than any human.
510824
Reposted by Joshua Grochow
Abilu Tangwa. @abilutangwa.bsky.social · 06/10/2026
We mandate seatbelts to save lives. We mandate education to build futures. Why don't we mandate forest restoration to save the planet? Bare land should be illegal when we have the seeds to heal it.
828099
Reposted by Joshua Grochow
John Scalzi @scalzi.com · 06/10/2026
Hot news for the sea lion in my comments bothering everyone about how training data is fair use www.courthousenews.com/ai-training-...
courthousenews.com
AI training of copyrighted material not fair use: Third Circuit
Using someone else's "creative spark" to start a competing business runs afoul of copyright law, the panel found.
603837907
Reposted by Joshua Grochow
Baldur Bjarnason @baldurbjarnason.com · 06/10/2026
"Software developers are not okay" www.baldurbjarnason.com/2026/05-soft... The software industry is becoming increasingly hostile to those who work in it. The uncertainty is affecting even those who believe in the promises of tech. Direct link to the essay: www.baldurbjarnason.com/2026/05-soft...
baldurbjarnason.com
Software developers are not okay
Writing at the end of the world, from Hveragerði, Iceland
1718477
Joshua Grochow @joshuagrochow.bsky.social · 06/10/2026
I think maybe TCS (and math?) needs to clarify norms on what counts as “Disclosure of financial conflict of interest” rather than “How this result was shared with the authors”
0101
Reposted by Joshua Grochow
Clément Canonne @ccanonne.github.io · 02/10/2026
USyd 🇦🇺 is hiring in CS! Tenure-track equivalent, junior/mid-career: usyd.wd105.myworkdayjobs.com/en-GB/USYD_E... With a focus on AI, but that includes TCS! Theory that helps building foundations of AI, gaining a deep understanding of it, or using AI in an ambitious way to solve deep problems...
usyd.wd105.myworkdayjobs.com
Multiple Continuing (Tenure-Track) Academic Positions, Faculty of Engineering, The University of Sydney
Join a thriving Faculty of Engineering at a University ranked amongst the world’s best teaching and research institutions and help shape the future of artificial intelligence and its impact across eve...
1158
Joshua Grochow @joshuagrochow.bsky.social · 05/10/2026
@arula-ratnakar.bsky.social Tomorrow's AATRN Networks Seminar looks like something maybe you'd be interested in: "Computing the Topology of Directed Networks: Simplification and Neural Applications." sites.google.com/view/aatrn-n...
sites.google.com
AATRN-Networks-Seminar
About: A regular online seminar covering how network structure is revealed through topology and algebra as well as applications of these to machine learning and other sciences. Topics covered in the s...
110
Reposted by Joshua Grochow
Jed Brown @jedbrown.org · 05/10/2026
If you are an academic who uses arXiv, please consider signing this. **Give Authors Control: Let Us Decide If AI Bots Can Read Our arXiv Papers** math.mit.edu/~elmos/petit...
Currently, authors posting to arXiv have no control over whether bots scrape their full-text PDFs and LaTeX source files.

We are calling on arXiv to implement a simple permission toggle during submission, allowing authors to decide what automated scrapers can access:

Full Access: Bots can read and scrape the full text and source files.

Metadata Only: Bots are restricted to the Title, Abstract, and Citation metadata.

Open science for human readers should not mean mandatory, unconsented data harvesting by commercial entities. Advancing scientific knowledge demands immense time, resources, and intellectual rigor — we deserve a say in whether our original work is fed into massive, opaque training sets.
913772
Joshua Grochow @joshuagrochow.bsky.social · 04/10/2026
U Colorado Boulder Computer Science is hiring for three (3) tenure-track faculty positions in: - #Quantum Computing - #AI - Computer Architecture & Systems Links to each here: www.colorado.edu/cs/jobs Please help spread the word! #AcademicSky
colorado.edu
Jobs
Jobs Mailing ListThe Computer Science Department maintains a moderated Jobs Mailing List. The list is open to anyone, students, alumni and even the public at
078
Joshua Grochow @joshuagrochow.bsky.social · 04/10/2026
U Colorado Boulder Computer Science is hiring in #Quantum Computation, including: - Quantum CS Theory - Applications of QC to important or emerging areas Details: jobs.colorado.edu/jobs/JobDeta... Pls help spread the word, and reach out to me if you have questions. #🧮 #AcademicSky #TCSSky
jobs.colorado.edu
Tenure-Track Faculty in Quantum Computation
1149
Reposted by Joshua Grochow
Catherine D'Ignazio (she/her/ella) @kanarinka.bsky.social · 25/09/2026
MIT spent $3 million on 500 AI-capable surveillance cameras while laying people off, shutting down libraries, and canceling journal subscriptions. In this article, 4 faculty & I discuss our new arts initiative to celebrate surveillance and repression on college campuses: fnl.mit.edu/how-we-learn...
fnl.mit.edu
How We Learned to Stop Worrying and Love Campus Surveillance – MIT Faculty Newsletter
8435202
Reposted by Joshua Grochow
Jed Brown @jedbrown.org · 02/10/2026
One of these OpenAI astroturfed events just happened here. The "Student Leads" of the event are receiving cash stipends. It is not a registered student organization. Unclear if compliant with the Campus Use of University Facilities policy, which normally prohibits commercial use of classrooms.
Photo of poster on a bulletin board
OpenAI Student Collective at CU Boulder
Hands-on workshop
Create Your Website
From Idea to Link

Build a website with ChatGPT Work and Sites.
No coding needed. Bring a laptop
Monday, September 28
6:30-7:45 PM
KOBL 352
Leeds School of Business
Scan to RSVP: https://luma.com/y0w9zqlgWhat you’ll receive

    A ChatGPT subscription and Codex credits for the duration of the program

    Funding, credits, and merch to help you organize campus events

    Training, resources, and guidance on the latest OpenAI tools and technology

    Access to the OpenAI team and a global network of Campus Leads

    A cash stipend each semester in recognition of your time and leadership

    Opportunities for a HQ visit in June 2027 and other surprises along the way
23217
Reposted by Joshua Grochow
Ketan Joshi @ketanjoshi.co · 02/10/2026
back in my day intentionally fabricating data for use in scientific inquiry was sternly frowned upon
19029
Reposted by Joshua Grochow
ꭓle Ormsby 𓆙 @e-infinity.space · 02/10/2026
I'm speaking in TATERS today at 2pm Pacific / 5pm Eastern on the Pontryagin-Thom construction in algebraic geometry! Come for the pretty slides (see e-infinity.space/files/taters...), stay for the framed correspondences and principal quadratic divisors.
Screenshot of TATERS opening slide:

Kyle Ormsby · Reed College · October 2026
The Pontryagin–Thom construction in algebraic geometry
Count the points in a fiber. Attach a sign to each. In algebraic geometry the sign becomes a unit, the count becomes a quadratic form, and the relations come from the zeros and poles of rational functions.
2123
Reposted by Joshua Grochow
Ismael K.G. 🇩🇿🇨🇦🇪🇸🧀 @hermeneuticist.bsky.social · 02/10/2026
“Adoption of AI in science presents what seems to be a paradox: an expansion of individual scientists’ impact but a contraction in collective science’s reach, as AI-augmented work moves collectively towards areas richest in data.” www.nature.com/articles/s41...
nature.com
Artificial intelligence tools expand scientists’ impact but contract science’s focus - Nature
Artificial intelligence boosts individual scientists’ output, citations and career progression, but collectively narrows research diversity and reduces collaboration, concentrating work in data-rich a...
031
Reposted by Joshua Grochow
ꭓle Ormsby 𓆙 @e-infinity.space · 01/10/2026
Announced today: arXiv is now rate-limiting contributors to two submissions today. blog.arxiv.org/2026/10/01/u... 🧮
blog.arxiv.org
Fair Moderation, Equitable Access, and AI: arXiv’s Updated Rate Limit Policy
arXiv, and the scientific community at large, are facing a watershed moment. Scholarly publishing is currently changing at a rapid pace, and we are seeing a…
1193
Reposted by Joshua Grochow
Emily M. Bender @emilymbender.bsky.social · 01/10/2026
New from @timnitgebru.blacksky.app and me: "It is high time for us to regulate usage of systems sold as “AI”, not because they are magical machines, but because they are error-prone products that shouldn’t be used in high stakes scenarios." www.theguardian.com/commentisfre...
theguardian.com
Forget ‘superintelligence’: error-prone AI nearly sparked world war three this month | Timnit Gebru and Emily M Bender
The risks of AI aren’t what we think they are, as a recent security incident between China and the United States reveals
13974417
Reposted by Joshua Grochow
Lisa Messeri @lmesseri.bsky.social · 01/10/2026
one of the reasons that I warn researchers away from adapting commercial LLMs into their pipeline is that Big Tech has a history of sunsetting popular, usable products and replacing them with worse ones. (i'm trying to ween myself off of google scholar, but it is hard).
1021779
Reposted by Joshua Grochow
Marc Robinson-Rechavi @marcrr.bsky.social · 25/09/2026
Hill I'm ready to die on: whether for grants or articles, review by AI is not *peer review*. Review based on a 1st scan by AI without actual reading of the grant or manuscript is not peer review either.
213030
Reposted by Joshua Grochow
Ian Carrillo @iansociologo.bsky.social · 01/10/2026
This tech is based on stolen labor, then I reject it. This tech intensifies racism, sexism, and class exploitation, then I reject it. This tech exploits workers in the Global South, then I reject it. This tech exacerbates env & climate problems, then I reject it. All these rationales are valid!
222763
Reposted by Joshua Grochow
サッカー bones @doctorbones.bsky.social · 30/09/2026
We are hiring for two TT positions, one in Combinatorial Algebraic Geometry and one in Math Ed. Come work here! www.mathjobs.org/jobs/Virgini...
mathjobs.org
MathJobs from the the American Mathematical Society
Mathjobs is an automated job application system sponsored by the AMS.
1127
Reposted by Joshua Grochow
FOCS 2026 @focs2026.bsky.social · 30/09/2026
Registration for #FOCS2026 is now open: focs.computer.org/2026/registr... Early bird deadline: ⏰ October 26, AoE
focs.computer.org
Registration – FOCS 2026
035
Reposted by Joshua Grochow
Kashmir Hill @kashhill.bsky.social · 30/09/2026
Meta is using a radical interpretation of a tax credit for “research and experimentation” to get billions of dollars off GPUs for its A.I. data centers. My latest with Jesse Drucker, @elitan.bsky.social and @mikeisaac.bsky.social www.nytimes.com/2026/09/30/t...
nytimes.com
How Meta Uses A.I. Data Centers to Avoid Billions in Federal Taxes (Gift Article)
Meta is exploiting a lucrative tax break intended to support research and experimentation. Its own accountants say the gambit is risky.
10200104
Reposted by Joshua Grochow
Gülce @gkardesd.bsky.social · 30/09/2026
Also, I learned recently that Or Meir gave a wonderfully accessible talk at Cambridge on a recent work of mine with Ben Rossman on chopping games (arxiv.org/abs/2609.01759), and brought together a few strands of top-down lower bounds.
youtube.com
Prof. Or Meir | On Top-Down Lower Bound Techniques for Constant-Depth Circuits
YouTube video by INI Seminar Room 1
093
Reposted by Joshua Grochow
Stephanie King @stephstephking.bsky.social · 29/09/2026
This is something I deal with a lot at work bc I think students should have the right to refuse to have their work submitted to checkers (which are notoriously unreliable) bc it is their intellectual property. But professors want to be "sure" when that does not exist
19410
Reposted by Joshua Grochow
Dr Katie Twomey @k2mey.eurosky.social · 28/09/2026
This is quite cool. My university is the first organisation in the world to force Microsoft to allow us to turn off copilot summaries in Word 365, after a backlash against it from staff (including, very vocally, me). That cannot have been easy for our heroic IT people so hats very much off to them!
895445936
Reposted by Joshua Grochow
normal-wife @category-fury.bsky.social · 29/09/2026
Hey all I am trying to stay here in Australia (and out of America) permanently but the cost of a partner Visa is a bit extreme. Please help me stay here with my beautiful partner Lucy for good! gofund.me/b264e145f
gofund.me
Donate to Help Olivia stay in Australia (Partner Visa), organized by Olivia Borghi
Hi all I have been living here in Australia for 5 years now. I came here … Olivia Borghi needs your support for Help Olivia stay in Australia (Partner Visa)
77661
Reposted by Joshua Grochow
Emily M. Bender @emilymbender.bsky.social · 08/08/2026
I was struck by the extent to which this reviewer (and many other people, I'm afraid) have lost sight of the possibility of refusal. And so I want to reaffirm: There is no responsible use without the possibility of refusal. >>
221565
Reposted by Joshua Grochow
Alexander Kasprzyk @amkasprzyk.bsky.social · 28/09/2026
Already mathematicians have to decide whether they want to use their grant application to fund a postdoc, or instead to purchase #LLM tokens. Perhaps soon your department will offer you a choice between a PhD studentship or LLM tokens. These decisions will shape the future of our community. #MathSky
A picture of an abandoned lecture hall, intended to convey the choice that faces researcher between tokens and research students.
181
Joshua Grochow @joshuagrochow.bsky.social · 27/09/2026
What if paperclips were just a metaphor for data centers all along. They have become the paperclip maximizers they claim to be so worried about.
1102
Reposted by Joshua Grochow
Mike Eliason @holz-bau.bsky.social · 26/09/2026
chat is this good?
all construction dropping massively.
11342881092
Reposted by Joshua Grochow
George Monbiot @georgemonbiot.bsky.social · 24/09/2026
Here's today's column on the astonishing, ongoing mistreatment of people with #ME/CFS. Please spread it far and wide: the only thing which can break the media's wall of indifference is seeing an article about the issue go viral. Thank you. 1/2 www.theguardian.com/commentisfre...
theguardian.com
Abandoned, dismissed and gaslighted: there is no excuse for the way ME sufferers have been betrayed | George Monbiot
Changes in guidance and science seem to have little impact on millions of devastated lives. It’s a social crisis playing out behind closed doors, says Guardian columnist George Monbiot
17925351729
Reposted by Joshua Grochow
Matt Seybold @mattseybold.bsky.social · 24/09/2026
Okay, so I think AI detection is a bad strategy in education for a variety of reasons, starting with the fact that it's a tool that breaks solidarity between students & teachers. It aligns professors with for-profit tech companies against naughty students. I don't like that dynamic. 1/4
79621
Reposted by Joshua Grochow
ꭓle Ormsby 𓆙 @e-infinity.space · 24/09/2026
Well, just recommended a yearlong ban for someone due to a math.KT AI slop submission. Don't do that, kids.
0303
Reposted by Joshua Grochow
Accessibility Awareness @a11yawareness.bsky.social · 22/09/2026
Hyperlink text should make sense when read out of context. Screen reader users can navigate from link to link, and can listen to links in a list. When navigating this way, only the link is read. So "click here" or "read more" won't make sense.
01912
Reposted by Joshua Grochow
Jennifer Ouellette @jenlucpiquant.bsky.social · 24/09/2026
Disney+ and Hulu raise prices by up to 13 percent after doubling profits arstechnica.com/gadgets/2026...
arstechnica.com
Disney+ and Hulu raise prices by up to 13 percent after doubling profits
The Disney+ ad-free plan is now more expensive than Netflix's.
1158
Reposted by Joshua Grochow
ꭓle Ormsby 𓆙 @e-infinity.space · 22/09/2026
Chaim is bringing the fire 🔥
Abstract
We provide a clearer presentation of the Chair44 monotile, a new strongly aperiodic
monotile in three-dimensional Euclidean space E3
.
With LLM tools (ChatGPT Astra), Ioannis Tsiokos recently reported the first
known strongly aperiodic monotile in three-dimensional Euclidean space E
3
, the Chair44
monotile (see Figure 3, taken from Tsiokos’ preprint [11]). Hats off to Tsiokos for this
discovery, the framework he developed, and the human inquiry that led to the Chair44
monotile.
However, the paper itself and the formalization that it claims for support are not
in a form that is readily usable to anyone who wants to understand or check it. This is
not just because of the needless length or complexity of the argument (which is indeed
overwhelming as presented), or because the formal repository is not in normal form, or
because much of the text is misleading or poorly organized, but mainly because there
is so much irrelevant puff to push through. These are hallmarks of an LLM-driven
research paper.
We must, absolutely, insist on a higher standard for scientific discourse. The aim
must be to communicate, clearly, with people in the community — certainly this is an
historical requirement for publication.1
37418
Reposted by Joshua Grochow
Simons Institute for the Theory of Computing @simonsinstitute.bsky.social · 23/09/2026
Join us Tuesday, 9/29 for the first Richard M. Karp Distinguished Lecture of this academic year, featuring @booleananalysis.bsky.social. simons.berkeley.edu/events/my-fa...
063