Reposted by Matt MacauleySteven Strogatz @stevenstrogatz.com · 23/09/2026www.nytimes.com/2026/09/22/s...nytimes.comMathematics Isn’t Just a Game to Let A.I. Solve. History Shows Why. (Gift Article)In our field of applied mathematics, the long, human process of trial and error — not just the solutions themselves — is often what has led to progress. 15721
Reposted by Matt Macauleyꭓle Ormsby 𓆙 @e-infinity.space · 22/09/2026Chaim is bringing the fire 🔥 37418
Reposted by Matt MacauleyThomas Lin @7homaslin.com · 18/09/2026For anyone wondering what Navier-Stokes is all about and what the recent proof did and didn’t do, watch @QuantaMagazine’s excellent new explainer video: youtu.be/PsWR1rQEWYoyoutu.beWhy Navier-Stokes Pushes Math and Physics to the EdgeYouTube video by Quanta Magazine 043
Matt Macauley @visualalgebra.bsky.social · 17/09/2026September fruit from my orchard. I picked these all today. Fuyu persimmons, flying dragon citrus, and red & green muscadines. 050
Reposted by Matt MacauleyMatt Zucker @mattz.bsky.social · 09/09/2026This fall I am co-teaching a brand-new class – ENGR 009: Fabricating Tessellations and Tilings. It's roughly equal parts math and design, filtered thru an engineering perspective. The syllabus and all assignments are freely available to the public at mzucker.github.io/e9_f2026/ 68223
Reposted by Matt MacauleyDave Richeson @divbyzero.bsky.social · 10/09/2026Here's a thoughtful blog post about math and AI by Matt Baker. mattbaker.blog/2026/09/10/s...mattbaker.blogSome late-night thoughts on AI and the future of research in mathematicsEvery time I’ve organized my thoughts sufficiently to finally write a proper blog post about the impact of AI on mathematical research, something massive happens which causes me to delay. I w… 0177
Reposted by Matt MacauleyAmerican Mathematical Society @amermathsoc.bsky.social · 01/09/2026A recent Washington Post article titled "This may be the first academic profession to see its work taken over by AI," ponders if AI can solve mathematical problems, what is left for mathematicians to do? What do you think? Leave your comments below! Full story link in comments. 322
Matt Macauley @visualalgebra.bsky.social · 26/08/2026My 7-year-old daughter heard me say that Dolly Parton died, and got visibly very sad. I was surprised she even knew that name. “You know Dolly Parton?” In the sweetest timid voice, she replied: “Well, I don’t _know_ know her. But she sent me books.” 🥹😢😭 1268
Matt Macauley @visualalgebra.bsky.social · 21/08/2026Academics, to "celebrate" the start of a new semester, post a WayBack Machine snapshot of your workplace from when you were applying to college (or a later milestone if you missed the dawn of dot edu) #WayBackCollegeChallenge 160
Reposted by Matt MacauleyAndrew D Hwang @diffgeom.com · 21/08/2026Please support independent creators as you shop for mathematical back-to-school posters, T-shirts, jewelry, and games: www.diffgeom.org/misc/math_sh... These are difficult times. We are all grateful for your support! #MathSky #MathArt #SciArt 1152
Matt Macauley @visualalgebra.bsky.social · 18/08/2026Nothing quite melts my heart like my 7-year-old daughter asking in earnest after dinner: “Daddy, can we do some abstract algebra?” 1190
Matt Macauley @visualalgebra.bsky.social · 09/08/2026It took 62 days of playing, but today I finally got my first perfect score in #MapTap! (Albany, Athens, Singapore, Bangkok, Gaborone.) www.maptap.gg August 9 100🎯 100🎯 100🎯 100🎯 100🎯 Final score: 1000maptap.gg🎯MapTap Daily Geography GamePlay MapTap - the daily geography game! Find 5 world locations on a 3D globe with historical stories. Free browser-based daily game for geography lovers. 130
Matt Macauley @visualalgebra.bsky.social · 07/08/2026When you get over 150 pounds of fresh figs in 3 weeks, you have to get creative. This is a cast iron skillet with wheel of Brie cheese, fresh figs, nuts, fresh rosemary, honey, balsamic glaze, and raw cane sugar. Baked for 30 minutes. 4201
Matt Macauley @visualalgebra.bsky.social · 04/08/2026Hey #MathSky. I’m teaching introductory linear algebra this fall for the first time in over a decade. What materials should I be aware of? I know I’ve seen a few posts about this sort of thing, but I don’t remember from whom or when. I don’t even know what (open) textbook(s) to use yet. Thank you! 4167
Matt Macauley @visualalgebra.bsky.social · 30/07/2026I know that \(…\) is supposedly “better” than $…$, but over the last 20+ years, I’ve shared LaTeX files with dozens of people, and I’ve NEVER seen ANYONE use \(…\) in the wild. Does anyone actually do this in practice? Or know anyone who does? Who are these mythical people? 13221
Matt Macauley @visualalgebra.bsky.social · 28/07/2026Made some water kefir with my fresh figs. Added a little sugar in the raw and basalmic vinegar. Fermentation process takes 48 hours. Gonna crack it open tomorrow! 061
Matt Macauley @visualalgebra.bsky.social · 27/07/2026Got 7 pounds each of the last two days. Would have been much more, but the rain caused many to ripen and rot quickly and get attached by bugs and bees. Up to 98 pounds in 13 days 030
Reposted by Matt MacauleyJuan Diego Rodriguez @juand-r.bsky.social · 25/07/2026Someone made a list of math problems solved by AI: vibemathed.comvibemathed.comVibeMathed - tracking math problems solved by AI modelsA website tracking mathematical problems solved by AI models - from famous conjectures to the Erdős problems at erdosproblems.com - each with a checkable source, a verification label, and a notability... 14410
Matt Macauley @visualalgebra.bsky.social · 25/07/2026Picked 8 pounds each of the last two days. Up to 83 pounds in 11 days, all from a single Celeste tree that I planted in 2015. (Including a 2 lb basket I forgot to include in my last photo.) 181
Matt Macauley @visualalgebra.bsky.social · 24/07/2026G-sets need to be taught in every abstract algebra class. It’s criminal at how absent they are from some of the most popular books. 150
Matt Macauley @visualalgebra.bsky.social · 23/07/2026The distribution is not unimodal! Back up to 7 pounds yesterday and 8 pounds today. Now over 65 pounds of figs in 9 days, all from the same tree that I planted in 2015. 040
Matt Macauley @visualalgebra.bsky.social · 22/07/2026In 44 days of playing this, I’ve never gotten a perfect score. Today was the closest I’ve come. And the one I missed was in an “easy round”. 😣 www.maptap.gg July 22 99🔥 100🎯 100🎯 100🎯 100🎯 Final score: 999maptap.gg🎯MapTap Daily Geography GamePlay MapTap - the daily geography game! Find 5 world locations on a 3D globe with historical stories. Free browser-based daily game for geography lovers. 030
Reposted by Matt MacauleyJohn C. Baez @johncarlosbaez.bsky.social · 21/07/2026The Gaussian Moments Conjecture is a pretty conjecture connected to probability and quantum field theory. Two days ago we suddenly learned it's false! - since it implies the Jacobian conjecture. Let me explain this conjecture - it's pretty simple as these things go. (1/n)arxiv.orgThe Gaussian Moments Conjecture and the Jacobian ConjectureWe first propose what we call the Gaussian Moments Conjecture. We then show that the Jacobian Conjecture follows from the Gaussian Moments Conjecture. We also give a counter-example to a more general ... 16115
Matt Macauley @visualalgebra.bsky.social · 21/07/2026Not quite as much the last 2 days: 4.5 pounds and 6 pounds, respectively. But that’s brings last week’s total haul to just over 50 pounds. 170
Matt Macauley @visualalgebra.bsky.social · 19/07/2026The World Cup Final, when tied after regulation, should be Golden Goal. No shootout no matter what. Give each team one extra sub every 15 minutes. What’s the counter-argument to this? 220
Matt Macauley @visualalgebra.bsky.social · 19/07/2026Most people would find this either delicious or disgusting. Toasted sourdough everything (seasoning) bread, butter, fresh figs, and…Marmite. 140
Matt Macauley @visualalgebra.bsky.social · 19/07/2026Picked 6 pounds today, which means that this one tree gave me 40 pounds of figs in just 5 days! 060
Matt Macauley @visualalgebra.bsky.social · 18/07/2026Happy Emoji Day! 📆 Celebrated today, because today is the date on the calendar emoji. 020
Matt Macauley @visualalgebra.bsky.social · 18/07/2026Only 7 pounds today. But that’s still 34 pounds from one tree in 4 days. My LSU Gold and Chicago Hardy trees aren’t even ripe yet. 292
Matt Macauley @visualalgebra.bsky.social · 17/07/2026And another 11 pounds today! Just from the Celeste. The LSU Gold and Chicago Cold Hardy figs haven’t even ripened yet. 030
Matt Macauley @visualalgebra.bsky.social · 16/07/202624 hours later. Over 9.5 pounds! Al from one Celeste tree in my front yard. 081
Matt Macauley @visualalgebra.bsky.social · 15/07/2026It’s that time of year again!!! Today haul: over 6 lbs. I’ll be getting this much every day for a few weeks. 180
Matt Macauley @visualalgebra.bsky.social · 09/07/2026Got my first rip Celeste fig of the year this morning. And saw this little guy protecting it. 060
Matt Macauley @visualalgebra.bsky.social · 02/07/2026#Worldle #1622 (01.07.2026) 1/6 (100%) 🔥 Current Win Streak: 140 days 🟩🟩🟩🟩🟩🎉 🧭⭐📍🗺️🚩🗿📜🛡️🔤🗣️💰💸📐 worldle.teuteuf.fr/shareworldle.teuteuf.frWorldle - Guess the CountryA daily geography game where you guess the country from its shape and get clues with every attempt. Play daily or explore the archive. 010
Matt Macauley @visualalgebra.bsky.social · 27/06/2026This is a fun daily game I discovered a few weeks ago. When you finish, they reveal 5 neat historical facts about the locations. It seems to frequently feature mathematicians; today it’s Sophie Germaine! This is also my highest score. www.maptap.gg June 27 95🏆 100🎯 100🎯 100🎯 100🎯 Final score: 995maptap.gg🎯MapTap Daily Geography GamePlay MapTap - the daily geography game! Find 5 world locations on a 3D globe with historical stories. Free browser-based daily game for geography lovers. 100
Reposted by Matt MacauleyIlana Horn @ilanahorn.bsky.social · 26/06/2026I went to the NAE's webinar on the proposed OMB changes. The intention of this is to stop scientific progress in the United States and cause the financial collapse of research universities. There is no other explanation for the proposed changes. 1139
Reposted by Matt MacauleyEdward Vogel @mathartforall.bsky.social · 26/06/2026This was good. History of mathematics somehow helps me get a deeper understanding. "How Divergence and Curl Were Discovered" youtu.be/11QvV18JGQM?... 041
Reposted by Matt MacauleyDr. Maria at Natural Math @maria-naturalmath.bsky.social · 25/06/2026Natural Math newsletter is out! This doesn't happen every ::checks notes:: semester. Some amazing math fiction books in the pipeline - check out all the samples and full activities to download! #iTeachMath #MathSky #KidLit #NorthCarolina #Raleigh #Durham #ChapelHillnaturalmath.comFactoring is friendship (check this out by 6/30); graph theory activities; Triangle, NC gatherings - June 2026 news - Natural MathThank you for checking out what’s new in the Math Maker Neighborhood! In this newsletter, you’ll see: Future Book Club news about three math fiction stories for elementary, middle school, and young ad... 082
Matt Macauley @visualalgebra.bsky.social · 22/06/2026I took my kids mushroom foraging in the woods behind my house, and we came home with a bunch of chanterelles. 0100
Matt Macauley @visualalgebra.bsky.social · 21/06/2026All on her own, my 7-year-old daughter made me a surprise Father’s Day card with a Cayley Graph and Cayley table! 🥰 1243
Matt Macauley @visualalgebra.bsky.social · 18/06/2026Hey #MathSky, I need your advice. Which of the following two pictures should I use to visualize quadratic integer rings? Pro of #1: They highlight the "fundamental domains." Pro of #2: Illustrates how both are "stretched versions" of the Gaussian & Eisenstein integers, respectively. 1/3 153
Matt Macauley @visualalgebra.bsky.social · 17/06/2026The Congo is COD?!? If only there was a more widespread 3-letter abbreviation for the the DRC… 250
Matt Macauley @visualalgebra.bsky.social · 12/06/2026The Canada/Bosnia World Cup game, the USA/Canada ODI cricket match, and the RBC Canadian Open are all happening simultaneously. You’d think they’d have a little more foresight about this. 010
Matt Macauley @visualalgebra.bsky.social · 12/06/2026Please feel free to reply with resources and materials that you know of that aren’t in this thread! 021
Matt Macauley @visualalgebra.bsky.social · 10/06/2026First figs of the year from my orchard, and they’re HUGE! 1160
Matt Macauley @visualalgebra.bsky.social · 09/06/2026Puzzle for #MathSky: what’s the knot type of this piece of artwork that is on display at the Denver airport? 4213
Reposted by Matt MacauleyJoshua Grochow @joshuagrochow.bsky.social · 09/06/2026This reminded me of how cool the Petersen graph is; a 6-post 🧵. First, what is it? The vertices are labeled by the 2-element subsets of {1,...,5}, and there is an edge between two vertices if the subsets are disjoint. This gives S5 in its automorphism group; in fact that's all there is. #MathSky 1164
Matt Macauley @visualalgebra.bsky.social · 03/06/2026My 7-year-old made her first Cayley graph and Cayley table today! And she LOVED it! At 9pm, she was too excited to go to sleep…”but I just want to do more algebra!” 🥰 #MathSky #VisualAlgebra 4485
Matt Macauley @visualalgebra.bsky.social · 25/05/2026My proof of the Riemann Hypothesis is 95% done. The remaining 5% is just showing that all of the non-trivial zeros have real part 1/2, and then typing it up. 1230