Jordan Ellenberg @JSEllenberg Twitter profile

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Jordan Ellenberg

@JSEllenberg

3 years

SHAPE, my "unreasonably entertaining" new book about geometry, is a New York Times bestseller and is available now!

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Last Seen Profiles

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Jordan Ellenberg

@JSEllenberg

8 years

It's actually not that much money when you split it between 7 billion people who don't have polio

deathandtaxes

@DeathAndTaxes

8 years

RFK Jr and Robert De Niro offer $100,000 to anyone who can prove vaccines are safe

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Jordan Ellenberg

@JSEllenberg

7 years

Apparently, Nazis have forgotten how powerful the Jews really are. Nine days from today, as a small reminder, we will blot out the sun.

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Jordan Ellenberg

@JSEllenberg

1 year

OK I have created the funniest GPT-4 system setting: "You are an assistant who has a degree from Harvard, and wants to make sure everyone knows you went there, but will never mention it directly."

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Jordan Ellenberg

@JSEllenberg

4 years

Well, I'll be damned, it really is a cubic.

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Jordan Ellenberg

@JSEllenberg

1 year

Gov. Evers, by vetoing the digits "20" and the hyphen from a reference to the 2024-25 academic year, has created an annual school funding increase authorization that persists for more than four hundred years.

Tony Evers uses veto powers to extend annual increases for public schools for the next four...

In signing the state budget, Gov. Tony Evers used his broad partial veto powers to make permanent annual per-pupil increases for public schools.

www.jsonline.com

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Jordan Ellenberg

@JSEllenberg

2 years

I thought I drank a lot of coffee but I'm not even matching the 70 cups per day worldwide average

Forbes

@Forbes

10 years

500 billion cups of coffee are consumed every day worldwide: http://t.co/Bbh4kHTbF3

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Jordan Ellenberg

@JSEllenberg

4 years

I'm pissed people are mocking this kid. She asks great questions, whose answers aren't obvious, and which math classes should address.

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Jordan Ellenberg

@JSEllenberg

2 years

Explained in class today that delta means a small positive number you choose and epsilon means a small positive number your enemy chooses.

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Jordan Ellenberg

@JSEllenberg

4 years

How much money did the Department of Defense lose this year?

John Arnold

@JohnArnoldFndtn

4 years

The USPS has lost at least $2.7 bln every year since 2007. The problem isn't corona; the problem is demand for mail has changed radically in 15 years while USPS hasn't. Any cash infusion must be conditioned on structural reforms that Congress has been punting on for 10+ years.

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Jordan Ellenberg

@JSEllenberg

1 year

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Jordan Ellenberg

@JSEllenberg

4 years

Cool, now do the cost of not doing the stimulus package.

The Hill

@thehill

4 years

Romney: Total cost of Biden's coronavirus stimulus package is "pretty shocking"

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Jordan Ellenberg

@JSEllenberg

4 years

If you live in Florida,Texas,Ohio, Arizona,Georgia,Indiana, Tennessee, and you're not registered to vote, your deadline is TOMORROW: Mon, Oct 5.

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Jordan Ellenberg

@JSEllenberg

1 year

It is bad but also objectively kind of hilarious that the governor of Wisconsin is accorded this power.

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Jordan Ellenberg

@JSEllenberg

3 years

Congratulations to mathematician Anna Kiesenhofer (partial differential equations) who won Olympic gold in cycling today!

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Jordan Ellenberg

@JSEllenberg

4 years

@ben_golub This is literally the only time there will ever be for dark polynomial jokes

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Jordan Ellenberg

@JSEllenberg

3 years

“Vaccinated people may spread delta as easily as unvaxxed” is like “Sober drivers may be as likely to die in a car crash as drunk drivers.”

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Jordan Ellenberg

@JSEllenberg

4 years

A lot of people still think of millennials as college students but in fact they are the 36-year-old just-elected mayor of Wausau, WI.

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Jordan Ellenberg

@JSEllenberg

4 years

If you wanted to craft a policy to harm college students both American and foreign, U.S. public health, the U.S. taxpayer, U.S. global power, and world science, you almost could not do better than this.

Aaron Reichlin-Melnick

@ReichlinMelnick

4 years

This is bad. ICE just told students here on student visas that if their school is going online-only this fall, the students must depart the United States and cannot remain through the fall semester.

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Jordan Ellenberg

@JSEllenberg

3 years

Succession names: (Tom) Wambsgans is named for someone famous for eliminating three opponents at once:

Bill Wambsganss - Wikipedia

en.wikipedia.org

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Jordan Ellenberg

@JSEllenberg

1 year

Loving the many quote tweets from people around the world who can’t believe Wisconsin is real

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Jordan Ellenberg

@JSEllenberg

4 years

But his e-miles

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Jordan Ellenberg

@JSEllenberg

6 years

History twitter: man we’re exhausted from dunking on Dinesh D’Souza all the time, we need a break Math twitter: on it

Dinesh D'Souza

@DineshDSouza

6 years

And just like that, an 80 percent chance for Democratic takeover of the House goes to 50-50. Nate Silver’s polling operation can’t survive a second embarrassment of the magnitude he suffered in 2016

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Jordan Ellenberg

@JSEllenberg

10 months

The kid assumed the board was simply connected, rookie mistake

Math Lady Hazel 🇦🇷

@mathladyhazel

10 months

I can't believe my eyes. 😵‍💫

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Jordan Ellenberg

@JSEllenberg

2 months

Nobody, not one person, is ready for the moment when Harris rolls out her VP choice and it's Tony Evers, jazzed as hell

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Jordan Ellenberg

@JSEllenberg

2 years

In case you're wondering why I retweeted a 7-year-old Forbes tweet it's because I found this same claim IN AN ACADEMIC PAPER

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Jordan Ellenberg

@JSEllenberg

2 years

which cited a marketing report w same figure. Looks like there's an actual estimate of 500b cups PER YEAR which at some point got miscopied

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Jordan Ellenberg

@JSEllenberg

4 years

People with knowledge of math say "Please tell me they didn't blindly fit to a cubic and then extrapolate"

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Jordan Ellenberg

@JSEllenberg

8 years

Biased ESPN is even worse, they run text during football games showing how many "points" they say each team has "scored." Not their call!

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Jordan Ellenberg

@JSEllenberg

6 years

I pity the flue

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Jordan Ellenberg

@JSEllenberg

1 year

@ArielKarlinsky

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Jordan Ellenberg

@JSEllenberg

7 years

Tom Brady looks disappointed, somebody tell him he's making an extra $1.50 a week

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Jordan Ellenberg

@JSEllenberg

4 years

Jill Biden is a community college prof. I hope that helps us get a national higher-ed discussion that's not focused on a few dozen selective 4-year colleges.

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Jordan Ellenberg

@JSEllenberg

8 years

Happy Erdős's birthday! Celebrate by taking the stimulant of your choice and inviting yourself over to somebody's house to do math.

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Jordan Ellenberg

@JSEllenberg

9 months

I often use this example in undergrad teaching. “A shred of ear meat computes this integral, so can you”

murat 🍥

@mayfer

9 months

i'll never get over how the cochlea is an analog fourier transform organ

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Jordan Ellenberg

@JSEllenberg

2 years

And somehow it gets repeated again and again despite making absolutely no sense

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Jordan Ellenberg

@JSEllenberg

4 years

You thought I was just dicking around on social media but I was Contributing To The Published Literature

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Jordan Ellenberg

@JSEllenberg

4 years

Gonna announce I proved the Riemann Hypothesis and then hurriedly reveal I was referring to the Riemann Hypothesis Total Landscaping

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Jordan Ellenberg

@JSEllenberg

5 years

Explained to my daughter about .999.... = 1. Her response: "My people will never agree to this, mathematician scum!"

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Jordan Ellenberg

@JSEllenberg

7 years

You sent a kid dressed as a cop to go around demanding people's stuff, so I guess it's never too early to learn about civil asset forfeiture

Donald Trump Jr.

@DonaldJTrumpJr

7 years

I’m going to take half of Chloe’s candy tonight & give it to some kid who sat at home. It’s never to early to teach her about socialism.

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Jordan Ellenberg

@JSEllenberg

5 years

So let me get this straight, if a book defines significance testing correctly there’s only an 11% chance it’s about psychology?

Jelte Wicherts

@JelteWicherts

5 years

89% of introduction to psychology textbooks define or explain significance testing incorrectly

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Jordan Ellenberg

@JSEllenberg

6 years

@benjaminwittes You should just email this guy once a week to say “gonads feel great, pray harder”

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Jordan Ellenberg

@JSEllenberg

7 years

Did this guy really just make a chart comparing an absolute number with a per-capita rate?

Ben Shapiro

@benshapiro

7 years

Here is a chart of American gun ownership and American murder rate. Please explain how more guns inevitably means more murder.

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Jordan Ellenberg

@JSEllenberg

4 years

Don't see why he's so scared when according to the cubic model the pandemic ends this Friday

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Jordan Ellenberg

@JSEllenberg

4 years

RIP John Conway. I asked him a lot of questions when I was a postdoc at Princeton and he always had a lengthy, deep, informative answer

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Jordan Ellenberg

@JSEllenberg

9 months

Am I confused or is this great news for US grad programs, US science, and US tech?

Rishi Sunak

@RishiSunak

9 months

From today, the majority of foreign university students cannot bring family members to the UK. In 2024, we’re already delivering for the British people.

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Jordan Ellenberg

@JSEllenberg

6 years

@scottjshapiro A senior prof encouraged me to apply to his department. I was flattered. Then he said "We haven't filled the position because in the past we tried to hire people who were really good."

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Jordan Ellenberg

@JSEllenberg

5 years

No, you put the armor on the part of the dragon with FEWER crossbow holes in it

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Jordan Ellenberg

@JSEllenberg

4 years

As high school gets underway in more and more districts I just want to tell you all it's OK to have a radical in the denominator.

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Jordan Ellenberg

@JSEllenberg

7 months

The guy who wrote this tweet got beat by Tony Evers in Green Bay, Chippewa Falls, Caledonia, Lodi, Pardeeville, Columbus, Portage, Wisconsin Dells, Prairie du Chien, Beaver Dam, Superior, Kenosha, Rhinelander, Brown Deer, Appleton, Wausau…

Scott Walker

@ScottWalker

7 months

You guys are so stupid. Wisconsin is a purple state because of the Democrat votes packed in Madison and Milwaukee.

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Jordan Ellenberg

@JSEllenberg

8 years

Mathematicians, train to be expert witnesses in the gerrymandering cases coming your way.

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Jordan Ellenberg

@JSEllenberg

1 year

I sold more copies than this in my first week and my book contained several geometry proofs and the definition of eigenvalues

Much-hyped biography of Tucker Carlson struggles to sell

Tucker by Chadwick Moore sells just 3,227 copies in first week after publication on 1 August, Publishers Weekly figures reveal

www.theguardian.com

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Jordan Ellenberg

@JSEllenberg

4 years

One last high school math mistake on her way out the door.

Rebecca Ballhaus

@rebeccaballhaus

4 years

NEWS: Betsy DeVos has resigned, writing in a letter to the president: "There is no mistaking the impact your rhetoric had on the situation, and it is the inflection point for me."

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Jordan Ellenberg

@JSEllenberg

2 years

HOLY S*** I'M ON JEOPARDY

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Jordan Ellenberg

@JSEllenberg

4 years

Ruin a theorem by changing one letter

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Jordan Ellenberg

@JSEllenberg

4 years

Galleys!

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Jordan Ellenberg

@JSEllenberg

11 days

I tried this on one of my papers and it produced a male voice saying things like “elliptic curves are very important for cryptography” and a female voice that kept saying things like “whoa my brain hurts!” so make of that what you will

Shriram Krishnamurthi 🟤 🏴‍☠️ 👨🏽‍🏫 🚴‍♂️ 🏏

@ShriramKMurthi

11 days

1/ Recently got access to Google's Illuminate, which AI-generates a ~6min "podcast"-format summary of a research paper. To test it, I gave it 5 of my own recent papers. This thread summarizes the evaluation: ↵

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Jordan Ellenberg

@JSEllenberg

5 months

“Now imagine the collection of all things that are weird in this way, and think of this collection as itself being a thing.”

William B. Fuckley

@opinonhaver

5 months

high level math: "imagine a thing. now imagine that it's weird."

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Jordan Ellenberg

@JSEllenberg

2 years

Partial differential equations

Fiona

@fimango

2 years

Be creative. What do girls want?

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Jordan Ellenberg

@JSEllenberg

4 years

@MBarany She's been told "math is for high tech" & "math is from antiquity." She has the presence to notice and ask about the tension there. Fantastic!

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Jordan Ellenberg

@JSEllenberg

7 years

Trump sacks his own cuck

Reince Priebus Is Ousted Amid Stormy Days for White House (Published 2017)

A six-month stint as President Trump’s top aide failed to impose order on an unruly and fractious White House.

www.nytimes.com

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Jordan Ellenberg

@JSEllenberg

5 years

Good lord, Stuart's right. Why did she say this?

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Jordan Ellenberg

@JSEllenberg

3 years

I walked by a hair salon called Julius Scissor and extremely disappointingly there isn't a wig store next door called Et Toupee, Brutus

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Jordan Ellenberg

@JSEllenberg

3 years

Another mathematician just won a gold medal!

Andrew Wilson Planning To Retire Post-Tokyo, Will Attend Grad School At Oxford

The American Olympic hopeful was planning on calling it a career after the 2020 Olympic Games prior to the pandemic.

swimswam.com

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Jordan Ellenberg

@JSEllenberg

13 days

No! They are not! They are in complete agreement that the race is very close and even small changes could affect the outcome!

Drew Spookvicki (Savicki) 🦇👻🧛‍♂️🎃

@DrewSav

17 days

The 538 and Nate Silver models are now basically opposites of one another.

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Jordan Ellenberg

@JSEllenberg

8 years

I can't remember if I cried When I read about his widowed bride But something touched me deep inside Vagenda of manocide

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Jordan Ellenberg

@JSEllenberg

6 years

If you're a math grad student I just want you to know, tenured professors look up basic definitions on Wikipedia constantly

One Devloper Army

@OneDevloperArmy

6 years

If you are a new programmer I just want you to know me and all of my colleagues with years of experience Google the most basic things _daily_

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Jordan Ellenberg

@JSEllenberg

4 years

⊂ and ⊆ are synonymous

rhymes with purple

@GenericBologna

4 years

In 5 words or less, start a fight without politics

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Jordan Ellenberg

@JSEllenberg

3 years

The new recording of Red is 2 hours long with tons of unreleased tracks added. You might even call it a … Taylor expansion

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Jordan Ellenberg

@JSEllenberg

4 years

A student just told me zero is positive in France. IS THIS TRUE??

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Jordan Ellenberg

@JSEllenberg

3 years

My talk with @lexfridman is up! This is LONG and goes very deep and covers a lot -- the Poincare conjecture, the Franco-Prussian war, the meaning of life, visualizing math, whether the real world is always simple, whether the universe is a mug, partnership between math and AI...

Lex Fridman

@lexfridman

3 years

Here's my conversation with Jordan Ellenberg ( @JSEllenberg ) about the mathematics of high-dimensional shapes and geometries.

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Jordan Ellenberg

@JSEllenberg

4 years

Some news: my new book, SHAPE, comes out on May 25, 2021. You can preorder it now!

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Jordan Ellenberg

@JSEllenberg

5 years

I'm voting for Elizabeth Warren in the Wisconsin primary.

Marisa Debowsky

@MarisaDebowsky

5 years

I’m voting for Elizabeth Warren in the Oregon primary.

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Jordan Ellenberg

@JSEllenberg

3 years

I have a piece in the @washingtonpost today: math is hard and we should tell our students the truth about it.

Perspective | Want kids to learn math? Level with them that it’s hard.

It’s only easy once you’ve mastered the concepts. Telling students otherwise can backfire.

www.washingtonpost.com

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Jordan Ellenberg

@JSEllenberg

1 year

Congratulations to Moon Duchin, the first mathematician in US history to be mentioned 46 times in a Supreme Court decision.

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Jordan Ellenberg

@JSEllenberg

3 years

Today is my 50th birthday. And today I arrived in my 50th state!

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Jordan Ellenberg

@JSEllenberg

4 years

I have a homological algebra joke but it fell flat.

🔥Kareem Carr | Statistician 🔥

@kareem_carr

4 years

I have a statistics joke but the average person would think it’s mean.

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Jordan Ellenberg

@JSEllenberg

5 years

To be clear: if you are an optimist about this disease YOU HAD BETTER HOPE there are tons of asymptomatic cases.

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Jordan Ellenberg

@JSEllenberg

3 years

brb getting "unreasonably entertaining" tattooed on my forehead

‘Shape’ Makes Geometry Entertaining. Really, It Does. (Published 2021)

In his new book, Jordan Ellenberg explains how geometric thinking can allow for everything from fairer American elections to better pandemic planning.

www.nytimes.com

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Jordan Ellenberg

@JSEllenberg

2 years

Social-emotional learning in math textbooks is not new.

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Jordan Ellenberg

@JSEllenberg

3 years

New Year's resolution (h/t Greg Kuperberg)

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Jordan Ellenberg

@JSEllenberg

5 years

Just teaching my daughter some python, how’s your homeschooling going?

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Jordan Ellenberg

@JSEllenberg

4 years

Very cool topology video showing that what the "holes" in a 2-holed surface are is not entirely clear.

Simon Pampena

@mathemaniac

4 years

🤯 Topological Logic - a rod through one hole of a double torus can pass through both with some careful stretching of the surface. No tearing or pinching required. A fantastic video made by math professor Dave Richeson @divbyzero

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Jordan Ellenberg

@JSEllenberg

1 year

brb whipping myself into a bayesian froth about how gauss was mid

Aaron Gwyn

@AmericanGwyn

1 year

Literary critic, Sam Bankman-Fried, on Shakespeare:

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Jordan Ellenberg

@JSEllenberg

3 years

Heads up, Wisconsin geometry teachers: the state legislature has outlawed use of the word "intersection" in class.

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Jordan Ellenberg

@JSEllenberg

3 years

I try to treat each day as a gift: something I didn't ask for and that I now have to figure out what to do with.

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Jordan Ellenberg

@JSEllenberg

4 years

I checked whether what David Brooks says about colleges here is true, and it's not.

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Jordan Ellenberg

@JSEllenberg

3 years

Peter Scholze reports on astonishing progress in computer formalization of mathematical proofs.

Half a year of the Liquid Tensor Experiment: Amazing developments

[This is a guest post by Peter Scholze.] Exactly half a year ago I wrote the Liquid Tensor Experiment blog post, challenging the formalization of a difficult foundational theorem from my Analytic G…

xenaproject.wordpress.com

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Jordan Ellenberg

@JSEllenberg

7 years

This game is just gonna come down to who can Badger harder.

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Jordan Ellenberg

@JSEllenberg

1 year

If you liked the tweet you might like my book in which I write about GPT and mention I went to Harvard

Shape: The Hidden Geometry of Information, Biology, Strategy, Democracy, and Everything Else

www.amazon.com

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Jordan Ellenberg

@JSEllenberg

4 months

Don't get what the big deal is, on average 73.9% of U.S. presidents have been convicted of a felony

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Jordan Ellenberg

@JSEllenberg

6 years

People need to grasp that a big part of civility is not lying.

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Jordan Ellenberg

@JSEllenberg

3 years

Think I'm gonna rent space next to campus and open up a shop called "University Sweatshirt Store" but it only sells books

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Jordan Ellenberg

@JSEllenberg

4 years

A big part of my writing process is to write a sentence that starts with “Indeed” and then delete the “Indeed.”

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Jordan Ellenberg

@JSEllenberg

4 years

Your quarantine h-index is the largest h such that you've been h miles from home h times since April 1. I think mine is 5.

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Jordan Ellenberg

@JSEllenberg

4 years

The thing is, God is generally on math's side.

Jim Acosta

@Acosta

4 years

Trump adviser: "Math isn't on our side. We need an act of God to alter the course.”

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Jordan Ellenberg

@JSEllenberg

7 years

Proposed rule for journalism: if you report an average, compute the median. If median is less than half of average, you must report both.

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Jordan Ellenberg

@JSEllenberg

5 years

And she said the Imperial group has scaled back its death estimates; that's just not right.

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Jordan Ellenberg

@JSEllenberg

4 years

Not gonna say I keep tabs open too long, but some of the ones I just closed were Google+ posts.

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Jordan Ellenberg

@JSEllenberg

4 years

"The product of mathematics is clarity and understanding. Not theorems, by themselves."

What's a mathematician to do?

I have to apologize because this is not the normal sort of question for this site, but there have been times in the past where MO was remarkably helpful and kind to undergrads with similar types of

mathoverflow.net

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