David Meyer

I'll be giving a talk on the mathematics of gemstone design at the Joint Mathematics Meetings in January.

meetings.ams.org/math/jmm2026...

@dangaristo.bsky.social, "In 1960 the Swiss physicist Ernst Stueckelberg developed a real-valued quantum mechanics that mapped the wave function from a complex-valued space to a real one, using a few tricks to get real numbers to mimic the rotations around an imaginary axis."

Philharmonie de Paris : quatre personnes en garde à vue à la suite de « graves incidents » lors du concert d’un orchestre israélien jeudi soir www.lemonde.fr/societe/arti...
« des spectateurs avaient tenté d’interrompre le concert, dont deux fois en faisant usage de fumigènes »

My thought as well.

Ode to Sequoyah The names of Waitie and Boudinot—

Alexander Posey, Ode to Sequoyah

... thy name shall descend to every age;
The mysteries enshrouding Cadmus’ name
Cannot obscure thy claim to fame.

poets.org/poem/ode-seq...
#NativeAmericanHeritageMonth

The November Beaver Moon glowed over campus last night, marking the final full moon before winter begins. 🌕

Photo Credit: Erik Jepsen

We're back on Thurs. 20 Nov when @snezanalawrence.bsky.social will guide us through 'A Little History of Maths.' How did our ancestors think about numbers? How was maths used to explain and understand the world around them? Where do numbers even come from? sitp.online/sitp/bedford/ #Bedford

Bemused by surprise expressed by commentariat at margins of REP losses last night, given @kalshiofficial.bsky.social prediction markets’ consistency for the last *year*, I explained @justinwolfers.bsky.social & Zitzewitz’ model www.nber.org/papers/w12200 in my Intro to Math Modeling class today.

Not really a fan of @zohrankmamdani.bsky.social, but it’s pretty great that he just started his acceptance speech by quoting Eugene Debs. #Election2025

8pm and they’ve called it for #Prop50!

Awfully proud to have published this terrific story of taking risks, making opportunities, and creating space for the wild creatures among us. Check out Sean Gerrity's debut nonfiction, Wild on Purpose, from bookshop dot org or nonprofit TorreyHouse.org/wild-on-purpose

@theswinerepublic.bsky.social, "there is abundant evidence that livestock raised in pastoral systems can be done in an environmentally benign way, at least compared to corn and soy production"

Ms17’s sketch of a diagram for a paper describing results of a project about spacetime geometry that she and another high school student have been doing with me.

John Stuart Mill, “If there were no more to be said than that scientific education teaches us to think, and literary education to express our thoughts, do we not require both? and is not any one a poor, maimed, lopsided fragment of humanity who is deficient in either?”

Almost finished off the Ramsey consumption/saving model in my Intro to Math Modeling class @ucsdphysci.bsky.social today. Funny that growth/decay rate of consumption is independent of income!

Today in Intro to Math Modeling @ucsdphysci.bsky.social : Derivation of constant relative risk aversion utility, w/reminders about continuity, some elementary probability, and l’Hôpital’s rule.

♥️ 🤺!

@nbcsandiego.com, Researchers discover unpublished Dr. Seuss manuscript @ucsandiego.bsky.social's Geisel Library www.nbcsandiego.com/news/local/r...
Will _Sing the 50 United States_ suffice to preserve the Union from the dissolution toward which our current polarization is heading?

My heart rate during Ms17’s XC race this afternoon. The race started at 3:45, and I managed to cheer her on at 11 spots on the course. That’s my workout for today!

Ms17’s XC team running the Mission Bay course for their 2nd Coastal Cluster meet. Almost November … but San Diego!

I will strongly recommend that all my students read this!

Academia giving up self governance makes me so sad. I remember when Caltech used to have faculty actually interview undergrad applicants, which I think led to more outliers and quirkiness. Efficiency breeds homogeneity.

3rd EER Summer School Contact EER Summer School in Experimental and Behavioral Economics Address: ISEG Lisbon School of Economics and Management – Rua do Quelhas 6, 1200-781, Lisboa Email: eersummerschool@gmail.com

I am pleased to announce the third EER Summer School in Behavioral and Experimental Economics, 1-4 June 2026 at ISEG in Lisbon, www.iseg.ulisboa.pt/en/, with Isabelle Brocas, Juan Carillo, Michalis Drouvelis, Ernst Fehr, David Levine, and myself as instructors. Information at
www.eersummerschool.org

Today in Intro to Math Modeling @ucsdphysci.bsky.social: a Ramsey model for optimal consumption & saving, w/digressions on Ramsey theory and utility theory.

I’d be pretty happy with £400,000 per annum … maybe even blissful!

Reading Frank Ramsey's "A mathematical theory of saving" as I prepare tomorrow's Intro to Math Modeling lecture @ucsdphysci.bsky.social. Apparently £5000 went a long way in 1928 -- Bliss!

My Twitter training is proving useful as I help Ms17 edit the descriptions in her activity list down to 150 characters!

The Case for Extreme Educational Acceleration of Intellectually Brilliant Youths - Julian C. Stanley, 1976

It seems CTY no longer provides the opportunity for talented students to accelerate through the HS math curriculum? Julian Stanley must be turning in his grave. See, e.g., “The case for extreme educational acceleration of intellectually brilliant youths” journals.sagepub.com/doi/10.1177/...

Today in Intro to Math Modeling @ucsdphysci.bsky.social : dynamics of naïve & activated T-cells & IL-2: ODEs, equilibria, stability, and successful immune response. With a digression on diaeresis and umlaut!