Craig S. Kaplan

At a concert on Friday, my local symphony orchestra played a very cool contemporary piece I hadn't heard before: "Shift, Change, Turn" by Jessie Montgomery. YouTube has a good performance by a Danish orchestra. youtu.be/PFEdZERf7Hs?...

FYI Southern Ontario friends: at least two of my local pharmacies in K-W have updated covid shots available NOW for all adults. (The "only high-risk groups" availability was slated to extend to later this month, but apparently they opened it up early.)

Marketing said they wanted a promotional video showing the book "in the wild". I'm assuming the Puget Sound shellfish research laboratory's beach counts as "in the wild".

If I went to Switzerland and won a Swiss watch precision contest, I would literally never talk about anything else

Starting my day making some art.

History FACT: Henry VIII's sixth wife did not 'survive'. She's definitely dead

I don't follow Formula One, but good on them for using subtitles for the hard of hearing… 

I've been crystalizing some advice for first-year college students: "Advice to the New College Student in the AI Era". Thesis: "the purpose of going to college is to emerge as close to middle-aged as possible". docs.google.com/document/d/e...

cs.uwaterloo.ca/news/ian-gol...

mandelbrot sweaters launching soon. now in fancy custom dithered four color knit designs and our classic two colors from years ago. pixel native knit sweaters. mathy and delicious. #knit #math #dithered #algorithmicallygenerated #mathfashion #fractal #mathart #cozycomputation

After many delays, my book is finally done! Print copies ship on September 29th, and the e-book is HALF OFF at www.manning.com/books/fabulo... from now through Labor Day, WHAT A FABULOUS DEAL! Thanks to everyone who supported this project; I appreciate you all so much.

To spell some of it out: - The colleagues are kind & brilliant - The students are exceptional, 2nd to no other school - Minimal BS in the way of research Cons: - cold - canadian geese are scary (but cute) If you want to do world-class research, look no further than UWaterloo CS

We’re not changing it.

If Lake Ontario becomes Lake America, the memory device HOMES will be changed to SHAME. Seems appropriate.

We're kicking off this year's Bridges #Mathart conference with warm welcomes by the former president of the Bridges organization, George Hart, the newly elected president, Craig Kaplan, local organizer Rachel Quinlan, and head of the #math school, Cathal Seoighe. #MathArt

Blue Bottle Games, as a policy, does not use generative AI. It's something we've discussed as a team, weighing the pros and cons, and ultimately, we decided it was not for us. Recently, while chatting with a colleague, she mentioned it was useful hearing our reasoning. So: Sharing time! 1/12

Me (closer plane) and @peacewind.aero (lead plane) flying the DHC-1 Chipmunks back to the Canadian Aviation Museum after a wild trip to #Oshkosh #AirVenture. Thanks to Matt in the support plane for the photos!

For anyone who thinks increasing oil & gas production is the path to energy independence, you're dead wrong. While we continue to rely on fossil fuels, we're held hostage to global pricing. The real path to energy security is local production of renewables and grid-scale storage. #EnergyTransition

While Prime Minister Full-Speed-Ahead-On-Climate-Arson-Without-Even-Pretending-To-Care-About-Our-Climate-Obligations eliminates our already weak climate targets, Toronto has the very worst air quality on Earth today due to climate-worsened extreme wildfires. 🇨🇦🔥🧵 1/ www.ctvnews.ca/toronto/weat...

This is what Canadians want - not U.S. over-priced, under-performing, old-tech vehicles. The BYD Dolphin G a plug-In Hybrid with a 1.5-liter paired with a 195-horsepower electric motor and the combined range of 1,000 kilometers for approx. $25,000 - $35,000. #cdnpoli #canada shorturl.at/PgErb

Happy anniversary of that time the post office asked me to provide evidence that my package was not delivered.

Wow. Look at all that great #MathArt over at gallery.bridgesmathart.org

Over 5,500 mathematical artworks can now be browsed in an attractive new gallery-wall layout on the Bridges website, thanks to the efforts of Nathan Selikoff: gallery.bridgesmathart.org/gallery?seed...

It's a classic strategy of short-term pain, long-term more pain.

Our very own Professor Dave Tompkins has won the 2026 Faculty of Mathematics Award for Distinction in Teaching! The annual award is conferred to instructors who have demonstrated outstanding teaching skills and a deep commitment to student education. Congrats, Dave: cs.uwaterloo.ca/news/dave-to...

The website for the 2026 Bridges Conference Exhibition of Mathematical Art, Craft, and Design is now live, featuring the work of more than 150 artists. gallery.bridgesmathart.org/exhibitions/...

Too big to succeed.

can’t believe a narcissist is being so publicly humiliated by a reflecting pool

i made a version of wikipedia you can doomscroll xikipedia.org

My nine year old asked for a Rosetta Stone cake for his birthday

Tried this and 1. Yeah I’m in these models all right 2. Even these tiny summaries contained an outright fabrication (I did not create AI Dungeon) and half-truths (I am way more “random science blogger” than “researcher” when it comes to “AI”)

Last and least, FWIW, my current AI policy for students. Subject to revision. Recommendations welcome.

I just learned that the term "carbon footprint" was developed by BP to offload responsibility for climate change onto individuals. Something like that's happening in higher ed with AI. Institutions capitulate or dodge; students are submitting; & they believe it's their individual failing. 7/

It is important to set quantitative and achievable goals and in that spirit I have decided I will be 20% more gay this month 🏳️‍🌈

It’s Pride 🏳️‍🌈 Spare one repost for a small creator? 🥺 My science and sci fi pins raise money for homeless LGBTQ+ people. Just sent another £800 to @aktcharity.bsky.social bringing total to £47,521 New for Pride 2026: 🌈Scientist🌈 🏳️‍🌈🐥🦜🦅🏳️‍🌈 🌈pronouns🌈 www.jamiebgall.co.uk/shop

All my code is strongly typed. I type all my vanilla JS and Python myself, on a keyboard, really strongly.

Uber’s COO has said that it’s getting “harder to justify” its AI costs because there was no way to show a link between AI spend and any meaningful increase in useful features. This is the first time I’ve seen a company say this directly. www.businessinsider.com/uber-coo-and...

HOLY CRAP! More than 12,000 people have completed my "Tod's Long-form #Census" (and counting)! That's way more more than most public opinion polls. There were 70+ questions. Here are four so far. ✅ Take it: census.todmaffin.com 📊 Full results coming in my newsletter: newsletter.todmaffin.com

My favourite phrases for when things go wrong… 1. It’s a shitshow at the fuck factory (English) 2. Now the turnips are cooked (Dutch) 3. A donkey is inside another donkey (Persian) 4. The Devil is loose in Salmonstreet (Danish) 5. A finger in the ass and screaming everywhere (Brazilian Portuguese)

Emily Groshoz, a poet and philosopher who was a member of the Bridges community, passed away on May 2nd. You can read one of her math-inspired poems, "In Praise of Fractals", here: mathartfun.com/fractaldiver...

I am looking forward to this year's Bridges #MathArt conference. It was fun being the Regular Papers Chair, but it was also quite some work (my Thunderbird folder counts close to 2k received or written emails 😅). Yet, the works are amazing, cannot wait for Galway in August. 🇮🇪

Supreme Court Overturns ‘Right v. Wrong’ https://theonion.com/supreme-court-overturns-right-v-wrong-1819573211/

The 2026 Presburger Award for Young Scientists goes to Vincent Cohen-Addad and @gautamkamath.com 🥳🎉 You can read the laudatio here:

Cover art for the May 2026 issue of the Notices of the American Mathematical Society. Here's a link to the issue: www.ams.org/notices

I don't know how anyone else feels about this, but to me, sharing a screenshot of chatbot output to make a point of some kind is an excellent way to undermine any credibility that might otherwise be granted to you in the context of whatever you're trying to say.

There should be demotivational YouTube math videos. Just to be different. COMIC ◆ www.smbc-comics.com/comic/phi PATREON ◆ www.patreon.com/ZachWeinersm... STORE ◆ smbc-store.myshopify.com

Here's Henri Matisse drawing a portrait of his son. Watch his head and eyes, and how often they look back and forth between his drawing and his son. Why does he look back and forth so frequently—why can't he just draw his son from memory?
And where exactly is he looking? 4/