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David Bindel

@dbindel.bsky.social

Professing computing and applied math at Cornell. Numerical methods for data science, plasma physics, other stuff depending on the day. Director, Cornell Center for Applied Mathematics; Director, Simons Collaboration on Hidden Symmetries and Fusion Energy.

959 Followers  |  628 Following  |  625 Posts  |  Joined: 01.12.2023  |  1.7641

Latest posts by dbindel.bsky.social on Bluesky

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Week 29 Within, amongst, against

Each Friday, I summarize what happened this week in science πŸ§ͺ& higher ed. This was Week 29:

- new executive order makes a mockery of peer review
- UCLA facing demand for $1 Billion, patents are latest attack on Harvard
- mRNA, climate assessments & so much more at buttondown.com/liminalcreat...

09.08.2025 14:27 β€” πŸ‘ 18    πŸ” 9    πŸ’¬ 2    πŸ“Œ 1
A painting of a bird next to the words "at least let me get some coffee before you start in with your horseshit"

A painting of a bird next to the words "at least let me get some coffee before you start in with your horseshit"

09.08.2025 14:08 β€” πŸ‘ 289    πŸ” 61    πŸ’¬ 3    πŸ“Œ 6

Me in 2023: Just chill. All the AI doom scenarios involve giving models direct access to and control over real world systems, and no one would be that dumb

In 2025: oh fuck

09.08.2025 14:12 β€” πŸ‘ 31    πŸ” 7    πŸ’¬ 0    πŸ“Œ 1

Step 3: Profit!

04.08.2025 23:50 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Yes, I am favoring food-based representative words. Maybe I should eat something.

Anyhow, despite <gesticulates wildly at the world>, I am finding joy in little things where I can.

31.07.2025 01:15 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

The "Words with Friends" dictionary has an anagram group of size 12 (!), represented by "pears".

31.07.2025 01:14 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

I'm teaching a part of a summer program afternoons this week, and the project involves doing various things with anagrams.

From a dictionary of popular words, there are six anagram groups of size 5, represented by "eat", "meat", "triangle", "tales", "tacos", and "stop".

31.07.2025 01:13 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
A cow with its head stuck in some trees

A cow with its head stuck in some trees

Despite my unease,
I'm still just a cow in some trees

12.07.2025 06:34 β€” πŸ‘ 894    πŸ” 220    πŸ’¬ 2    πŸ“Œ 12

Today is a good day to remember: "taco cat" spelled backwards is still "taco cat."

04.07.2025 12:10 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Congratulations! And now that you're a little closer, we hope you'll come up to Ithaca to visit us again sometime.

01.07.2025 17:49 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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How Bees, Beer Cans and Data Solve the Same Packing Problem (Gift Article) Trying to fit it all in? There’s a trick to it, even in 24 dimensions.

Dear #mathsky, if you repost this, it will let people see the article for free. Thanks!

www.nytimes.com/interactive/...

23.06.2025 10:53 β€” πŸ‘ 86    πŸ” 66    πŸ’¬ 1    πŸ“Œ 3

Monk seals on a beach.

22.06.2025 07:48 β€” πŸ‘ 149    πŸ” 16    πŸ’¬ 2    πŸ“Œ 1

Sadly, replacing the clause "the Danish government is switching to Linux" with "the US government is bombing Iran" would have made the sentence less surprising.

22.06.2025 00:35 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

I am trying to imagine how I would have reacted 20 years ago, say, to the sentence "In response to the foreign policies of President Donald Trump, the Danish government is switching to Linux.". Just... Every word would have been unexpected.

22.06.2025 00:30 β€” πŸ‘ 5    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Because I am enjoying watching Murderbot, I decided to reread the Murderbot novels. And I really want to know will voice ART in season 2.

21.06.2025 22:17 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Dear everyone I owe a response to something: I am catching up with myself, and expect to get all responses out soon.

Say in about two weeks...

21.06.2025 14:20 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Elbert Frank Cox - Wikipedia

One hundred years ago, Dr. Elbert Frank Cox earned his Ph.D. in mathematics at Cornell University. He was the first African American to receive a Ph.D. in mathematics.

en.wikipedia.org/wiki/Elbert_...

20.06.2025 18:30 β€” πŸ‘ 7    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

people more pro-AI than me? gullible nerds. people more anti-AI than me? fear-addled clowns. and me? perfect, as per usual

20.06.2025 15:53 β€” πŸ‘ 54    πŸ” 9    πŸ’¬ 1    πŸ“Œ 0
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CΒ³ Group @ Cornell We are a team of interdisciplinary researchers at Cornell University. We study how nonlinear dynamics and distributed control shape collective intelligence in natural and engineered systems, drawing o...

My research group at Cornell finally has a dedicated website ☺️ Still very minimal, but we will populate it soon with the cool projects we are getting off the ground! Stay tuned! sites.google.com/cornell.edu/...

17.06.2025 17:32 β€” πŸ‘ 11    πŸ” 2    πŸ’¬ 1    πŸ“Œ 0
Post image 18.06.2025 20:48 β€” πŸ‘ 90    πŸ” 14    πŸ’¬ 1    πŸ“Œ 1

We need an infinite number of Alt^n FDA accounts, each posting at some fixed fraction of the rate of the Alt^(n-1) account, and I will have my new geometric series example for the year.

18.06.2025 08:10 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Ended father's day with Scrabble, where I managed to play "qi" on the corner triple word score (building "ti" the other way).

Hey, I take my victories where I can.

16.06.2025 00:31 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

how the fuck is it possible to be this bad at drinking coffee

15.06.2025 17:15 β€” πŸ‘ 1381    πŸ” 124    πŸ’¬ 56    πŸ“Œ 5
Green and red sock with a picture of a man on a recliner.  Surrounding area the words "ain't no bad joke like a Dad joke."

Green and red sock with a picture of a man on a recliner. Surrounding area the words "ain't no bad joke like a Dad joke."

Happy father's day!

15.06.2025 13:05 β€” πŸ‘ 9    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

If anyone happens to know optimal rates (in m) of convergence for approximating a compact convex set in the plane by the convex hull of boundary points, I would love a pointer.

13.06.2025 22:54 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

It was a fantastic technical program, and we got to show off Ithaca in the summer. And I got to mostly ignore the news, because I was busy talking math and running logistics.

Also, the cowbell I got a few years ago continues to be a sound investment.

13.06.2025 22:46 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

This was number 22 in the series, which has run every three years since well before I was born (except COVID delay of the last meeting).

I first attended as a senior graduate student in 2005, and have been on the technical program committee for the past three.

13.06.2025 22:43 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Householder Symposium XXII The Householder Symposium on Numerical Linear Algebra is held every three years and provides a venue for established and junior researchers to share their work in an informal setting. Attendance is by...

Today was the end of the Householder Symposium on Numerical Linear Algebra, which this year was held at Cornell. Anil Damle, Alex Townsend, and I were the local organizers.

householder-symposium.github.io

13.06.2025 22:40 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Grateful to Householder committee for the opportunity to explain the ResQPASS algorithm at Householder symposium XXII at Cornell University --- Ithaca, NY USA. The paper, co-auther with Bas Symoens ( arxiv.org/abs/2302.13616 ), has been accepted for publication in SISC.

13.06.2025 08:38 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0
A painting of a bird next to the words "what the fuck am i looking at"

A painting of a bird next to the words "what the fuck am i looking at"

07.06.2025 21:10 β€” πŸ‘ 492    πŸ” 69    πŸ’¬ 4    πŸ“Œ 9

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