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Dr. Courtney Gibbons (she/her/xlookup)

@courtneygibbons.phd
1.5K followers 877 following 3.7K posts

was @/virtualcourtney. math prof, pragmatic idealist, parent. Chief Problem Solver at MOTHERFUNCTOR.co I write a (U.S.) politics newsletter focusing on issues that affect the math community, newsletter.motherfunctor.co

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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 1h
100 emoji but melting or bloody depending on how you see it
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 1h
smaller = scalar
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 1h
What about running it through a bandsaw and then running its pages through a scanner?
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 1h
I don't think there's a right or wrong first thing to see. If you really want students to see that there's a multilinear alternating function that produces one smaller to encode information about a more complicated object, then why not? Why not start with determinants, traces, and other characters?
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 4h
The determinant is a beautiful function!
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 4h
That's wisdom!
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 6h
Can linear algebra feel pain?
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 09/10/2026
Ah, I think I see - it expects introduction first?
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 09/10/2026
#PretextGang #PretextPlus - I don't understand worksheets! I'm seeing that pretext.plus doesn't like a task within an exercise. But I thought the documentation for exercise allows for tasks? (Am I just the world's worst documentation reader?!)
pretext.plus
PreTeXt.Plus | Author accessible mathematical documents in your browser
PreTeXt.Plus is a service that supports the authoring and sharing of PreTeXt documents using only a web browser.
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 09/10/2026
Look at those big green eyes! or big green Spidery-Thingies!
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 09/10/2026
Yay cats, and beautiful flower!
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 09/10/2026
What was it like?
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 09/10/2026
They sold me a machine to drink my coffee for me, then I had to buy their caffeine injectables to get the same buzz, but it shaved 12 minutes off my morning routine which I use to earn 381 extra cents for my employer. At the end of the year I'll get a bag of gourmet coffee beans for my hard work.
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 09/10/2026
They didn't do the ball and chain part of tenure well enough I guess!
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Reposted by Dr. Courtney Gibbons (she/her/xlookup)
Dr. Katja Thieme (she/they) @katjathieme.bsky.social · 09/10/2026
OMG! *mind blown, slowly and inefficiently*
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 09/10/2026
Ooooh, very exciting! Are you expatriating or just keeping the option open?
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 09/10/2026
There's a lot to be learned by loitering in the right places
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 09/10/2026
Any particular spots you are excited to eat at?
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 09/10/2026
My favorite vegetable! What was on the menu?
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 09/10/2026
Amazing! My PR is like 20 total on the Olympic bar. I think to increment I need to create little 1/4lb plates
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 09/10/2026
Yaaaaaaaay! May you continue to find forgotten money
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 09/10/2026
Hey folks, what's a good thing that's happened in your life lately?
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 09/10/2026
RNNs are way easier to understand than brains. The don't modify and moderate their own hardware/circuitry, and they aren't multimodal info processors 🫠 I'm way more scared of babies and how fast they learn multimodally while deleting almost as many neural links as they make!
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 09/10/2026
I spent a year at NSF (in CISE/IIS/robust intelligence, if the alphabet soup means anything) and I learned that there are lots of questions that cog neuro/comp neuro/cog sci/behaviorists/etc don't agree on about what the brain is up to even if they (sometimes) try to model it the same way!
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 08/10/2026
I think cognitive science says you can model a brain that way for some purposes (like what some labs do to reconstruct vision from brain activity), but I don't think they'd say (necessarily) that that's what a brain is.
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 08/10/2026
Truly maddening. I'm glad you took the time to learn. Any time you want to talk math, tap me in. It's my literal favorite thing to do ever
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 08/10/2026
I know!! It was my job to explain this to Senate staffers in 2022 when ChatGPT blew up and it was so weird how many people wanted to believe it was more! Like, no! The "more" is the human interaction layer that flatters your ego, that's *IT*
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 08/10/2026
Yep! And a little bit of "this word is most likely to be 3 words away from this other word"(for different distances between words).
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Nalini Joshi @monsoon0.bsky.social · 08/10/2026
Here’s a bombshell for those considering the impact of the recent dump of mathematical papers by OpenAI: why the semantic translation of a mathematical text into Lean code by an AI may neither be reliable nor faithful 👉🏼 arxiv.org/abs/2610.08144
arxiv.org
Navier-Stokes lost in translation: Why Lean verification of AI autoformalisation does not guarantee correct natural language proofs
Autoformalisation is increasingly used to verify mathematical texts, including those generated by AI, as in OpenAI's announced proof of blow-up of solutions to the Navier-Stokes equations. In this pro...
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Reposted by Dr. Courtney Gibbons (she/her/xlookup)
Petra Schwer @petraschwer.bsky.social · 07/10/2026
This.
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 07/10/2026
Same but relations get to go to the middle school dance and things get awkward as they start to interact
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 07/10/2026
They're just the FOIL of products of generators of ______ (groups, modules, vector spaces...) where the relations come along and get to know each other
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Reposted by Dr. Courtney Gibbons (she/her/xlookup)
Darren Dahly @statsepi.bsky.social · 06/10/2026
They hounded Aaron Swartz to death for downloading papers from jstor but society is now supposed to just accept mass theft because this thing can write that TPS report *for* you. en.wikipedia.org/wiki/Aaron_S...
en.wikipedia.org
Aaron Swartz - Wikipedia
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Reposted by Dr. Courtney Gibbons (she/her/xlookup)
Michael Harriot @michaelharriot.bsky.social · 07/10/2026
dlvr.it
Don’t Blame the Democrats
With the midterms less than a month away, who should be blamed if the Democrats lose?
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 07/10/2026
The announcement was awful. They want to fund industry partnerships with an emphasis on industry and defund "traditional institutes of higher learning" So long, grad students?
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 07/10/2026
The enemy is OpenAI. Maybe colleagues and bureaucrats are also enemies that OpenAI has recruited to their pursuits. But OpenAI could just... not be like this. It's a choice to try to use math results to boost their IPO and create more value for billionaires.
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 06/10/2026
static.klipy.com
Rocko Scum Pond Scum Jars
Alt: Rocko Scum Pond Scum Jars
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 06/10/2026
😬😬😬 I feel like, in addition to the crime of calling that research-backed, it's also taking away the fun part of being a professor (and possibly the things that make a professor effective). It would be like designing a machine to drink coffee for me to save time: I don't get enjoyment or caffeine!
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 06/10/2026
You got me at Google reader
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 06/10/2026
The book description says that it is research backed, but it looks like it's all anecdotal?
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 06/10/2026
Done!
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Reposted by Dr. Courtney Gibbons (she/her/xlookup)
Matt Gabriele @profgabriele.com · 05/10/2026
Let’s do a giveaway! I have 1 copy each of the Turkish & Portuguese (Brazilian) translations of me & @lollardfish.bsky.social’s THE BRIGHT AGES. If you’re in US, respond below with which one you want, what you want me to write in it, and I’ll pick people to send them to. Share widely! #medievalsky
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 06/10/2026
Wow! I would love to give the Turkish translation to my brother-in-law. He would love the book especially because it includes more than just Europe. I guess I'd want you to write, "For Suleyman, a bright guy"
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 06/10/2026
Exactly!
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 06/10/2026
My advisor told me "the Snake Lemma is just Tor for the proletariat" almost 20 years ago and I'm still not sure if it's the most profound thing I've ever heard or nonsense
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 06/10/2026
Sigh.
Scene from It's My Turn where up and coming young math professor Kate proves the snake Lemma at a chalkboard.
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 06/10/2026
I think it's kinda charming
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Dr. Courtney Gibbons (she/her/xlookup) @courtneygibbons.phd · 06/10/2026
It's My Turn. I did not have time for a complicated (but exciting) personal life while on the tenure track. Not one married former baseball player in sight! Nor did I get to teach the Snake Lemma.
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Elizabeth Anne, PhD @lacksauthority.bsky.social · 05/10/2026
never the wrong time for this classic
Screenshot of a tweet by @RobbtKraft reading “scientist: "does everyone here know what Watson and Crick discovered?" 
me from back of room: "Rosalind Franklin's notes"”
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Reposted by Dr. Courtney Gibbons (she/her/xlookup)
Anil Dash @anildash.com · 05/10/2026
Exactly this. And in fact, many models *have* been created this way, and decades of prior machine learning systems *were* created this way, consensually. These things are choices! People are STILL working this way! It’s not just that a better world is possible — it already EXISTS. We can nurture it.
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