David Meyer
dajmeyer.bsky.social
David Meyer
@dajmeyer.bsky.social
selective synthesist
Reposted by David Meyer
What day will the government shutdown end? Nov 12 is 56%

Ask prediction markets (L) not MSM (WaPo, NYTimes, both on R)
November 11, 2025 at 3:27 PM
Reposted by David Meyer
Senate Dems: “And you promise we can vote on this once we give up all of our leverage?”

Sen Republicans: “Absolutely.”

Sen Dems: “Okay, hold it steady.”

Sen Repubs:
a cartoon girl in a blue dress is kneeling in a field holding a bag
Alt: a cartoon girl in a blue dress (Lucy) is kneeling in a field holding a football and moving out when Charlie Brown tries to kick
media.tenor.com
November 10, 2025 at 2:57 AM
Reposted by 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...
<p>The mathematics of gemstone design</p>
We present a graph-theoretic algorithm for enumerating all possible symmetric f...
meetings.ams.org
November 8, 2025 at 7:26 PM
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 »
https://lemonde.fr/societe/articl…
November 7, 2025 at 5:40 PM
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
Ode to Sequoyah
The names of Waitie and Boudinot—
poets.org
November 7, 2025 at 12:17 AM
Reposted by David Meyer
The November Beaver Moon glowed over campus last night, marking the final full moon before winter begins. 🌕

Photo Credit: Erik Jepsen
November 5, 2025 at 10:49 PM
Reposted by David Meyer
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
November 4, 2025 at 2:28 PM
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.
November 5, 2025 at 8:40 PM
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
November 5, 2025 at 4:29 AM
8pm and they’ve called it for #Prop50!
November 5, 2025 at 4:04 AM
Reposted by David Meyer
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
November 5, 2025 at 12:52 AM
@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"
open.substack.com/pub/riverrac...
One point not made in this piece is the billionaires ruin everything

Eating a hamburger used to be a pleasure enjoyed by working people everywhere

Now even that has been fucked up by rich assholes
Taking the Cow Path
Did environmentalists lay an egg on cattle?
open.substack.com
November 4, 2025 at 5:54 PM
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.
November 3, 2025 at 11:24 PM
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?”
November 1, 2025 at 5:12 AM
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!
October 31, 2025 at 10:10 PM
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.
October 30, 2025 at 3:03 AM
@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?
October 30, 2025 at 1:30 AM
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!
October 30, 2025 at 1:04 AM
Ms17’s XC team running the Mission Bay course for their 2nd Coastal Cluster meet. Almost November … but San Diego!
October 30, 2025 at 12:54 AM
Reposted by David Meyer
“In my work with the (Nuremberg Trial) defendants, I was searching for the nature of evil, and I now think I have come close to defining it. A lack of empathy... a genuine incapacity to feel with their fellow men. Evil, I think, is the absence of empathy.”

- Captain G.M. Gilbert, US Army
October 29, 2025 at 9:40 PM
Reposted by David Meyer
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.
The University of Chicago "does not list a single faculty member on its board... composed predominantly of CEOs and CFOs from private-equity or venture-capital firms, lawyers, and a founder of a women’s professional-football group." www.chronicle.com/article/rese...
Research Is the U. of Chicago’s Lifeblood. Its Board Is Killing It.
A great university could be reduced to a shell of its former self.
www.chronicle.com
October 28, 2025 at 5:17 PM
Reposted by David Meyer
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
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
www.eersummerschool.org
October 27, 2025 at 8:20 PM
Today in Intro to Math Modeling @ucsdphysci.bsky.social: a Ramsey model for optimal consumption & saving, w/digressions on Ramsey theory and utility theory.
October 28, 2025 at 12:09 AM
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!
October 27, 2025 at 6:00 AM
My Twitter training is proving useful as I help Ms17 edit the descriptions in her activity list down to 150 characters!
October 25, 2025 at 9:22 PM