Yannai A. Gonczarowski
@yannaigonch.bsky.social
Faculty @ Harvard Econ + Harvard Computer Science, past: MSR HebrewU, classical (opera) singer, father of two (+a pug) | tweets my own, repost≠endorse
https://yannai.gonch.name/
https://yannai.gonch.name/
Pinned
🚨New Paper🚨
𝐐𝐮𝐚𝐧𝐭𝐢𝐟𝐲𝐢𝐧𝐠 𝐈𝐧𝐞𝐟𝐟𝐢𝐜𝐢𝐞𝐧𝐜𝐲
Joint with Ella Segev
Social choice theory provides ways for aggregating the preferences of individuals in a society, to tell us what is better for society: alternative a or alternative b. However, this theory is silent on 𝑏𝑦 ℎ𝑜𝑤 𝑚𝑢𝑐ℎ a is better than b. 1/9
𝐐𝐮𝐚𝐧𝐭𝐢𝐟𝐲𝐢𝐧𝐠 𝐈𝐧𝐞𝐟𝐟𝐢𝐜𝐢𝐞𝐧𝐜𝐲
Joint with Ella Segev
Social choice theory provides ways for aggregating the preferences of individuals in a society, to tell us what is better for society: alternative a or alternative b. However, this theory is silent on 𝑏𝑦 ℎ𝑜𝑤 𝑚𝑢𝑐ℎ a is better than b. 1/9
New term just dropped:
Vibe proving
Credit goes to Tomer Ezra
(This is not an endorsement of this practice)
Vibe proving
Credit goes to Tomer Ezra
(This is not an endorsement of this practice)
November 13, 2025 at 3:28 PM
New term just dropped:
Vibe proving
Credit goes to Tomer Ezra
(This is not an endorsement of this practice)
Vibe proving
Credit goes to Tomer Ezra
(This is not an endorsement of this practice)
Reposted by Yannai A. Gonczarowski
🧪There are lots of misconceptions around the mechanism that keeps planes up in the air.
✈️ So how is lift generated? And what are some of the popular theories that are actually wrong? A quick read for your next air travel:
www.lbscience.org/en/2021/05/0...
@lbscience.org
✈️ So how is lift generated? And what are some of the popular theories that are actually wrong? A quick read for your next air travel:
www.lbscience.org/en/2021/05/0...
@lbscience.org
How Do Planes Fly? - Little, Big Science
When I was a kid, I was astonished that a big car with wings could take off and cruise through the air. “How does an airplane manage to take off?” I asked, like any curious child, and the adults repli...
www.lbscience.org
October 30, 2025 at 1:56 PM
🧪There are lots of misconceptions around the mechanism that keeps planes up in the air.
✈️ So how is lift generated? And what are some of the popular theories that are actually wrong? A quick read for your next air travel:
www.lbscience.org/en/2021/05/0...
@lbscience.org
✈️ So how is lift generated? And what are some of the popular theories that are actually wrong? A quick read for your next air travel:
www.lbscience.org/en/2021/05/0...
@lbscience.org
Reposted by Yannai A. Gonczarowski
🧪A decade ago pediatricians started recommending that babies be introduced to food allergens in infancy. Now, peanut and other food allergy rates have plummeted dramatically. The change was sparked by a series of studies inspired by an Israeli snack:
www.lbscience.org/en/2024/07/0...
@lbscience.org
www.lbscience.org/en/2024/07/0...
@lbscience.org
The Virtues of a Snack - Little, Big Science
Peanut allergy comes from an inappropriate immune response to a protein found in peanuts and can trigger symptoms ranging from a runny nose to anaphylactic shock, which can be fatal if not treated pro...
www.lbscience.org
October 26, 2025 at 8:56 PM
🧪A decade ago pediatricians started recommending that babies be introduced to food allergens in infancy. Now, peanut and other food allergy rates have plummeted dramatically. The change was sparked by a series of studies inspired by an Israeli snack:
www.lbscience.org/en/2024/07/0...
@lbscience.org
www.lbscience.org/en/2024/07/0...
@lbscience.org
Reposted by Yannai A. Gonczarowski
🧪We joined the party and provided a detailed response to RFK and Trump's latest statement on Tylenol use during pregnancy and Autism:
www.lbscience.org/en/2025/09/2...
@lbscience.org
www.lbscience.org/en/2025/09/2...
@lbscience.org
Tylenol and Autism – Setting the Record Straight - Little, Big Science
Autism is an umbrella term for neurodevelopmental conditions that manifest, among other things, as difficulties in communication and social interaction. The diagnostic criteria for autism and other fo...
www.lbscience.org
September 28, 2025 at 6:01 PM
🧪We joined the party and provided a detailed response to RFK and Trump's latest statement on Tylenol use during pregnancy and Autism:
www.lbscience.org/en/2025/09/2...
@lbscience.org
www.lbscience.org/en/2025/09/2...
@lbscience.org
Reposted by Yannai A. Gonczarowski
🧪 A story of flawed science, responsibility of prestigious journals and research institutions, and infatuation with one’s own “groundbreaking” discoveries 🧫. The paper that took over a decade to be retracted from Science:
www.lbscience.org/en/2025/09/0...
@drorbarnir.bsky.social @lbscience.org
www.lbscience.org/en/2025/09/0...
@drorbarnir.bsky.social @lbscience.org
The New Life-Form That Never Was - Little, Big Science
All known living organisms on Earth share a common biochemistry based on six chemical elements: carbon, hydrogen, oxygen, nitrogen, sulfur, and phosphorus. These six elements are the principal compone...
www.lbscience.org
September 4, 2025 at 8:46 PM
🧪 A story of flawed science, responsibility of prestigious journals and research institutions, and infatuation with one’s own “groundbreaking” discoveries 🧫. The paper that took over a decade to be retracted from Science:
www.lbscience.org/en/2025/09/0...
@drorbarnir.bsky.social @lbscience.org
www.lbscience.org/en/2025/09/0...
@drorbarnir.bsky.social @lbscience.org
Reposted by Yannai A. Gonczarowski
🧪 The toll we are taking on our Earth🌎 is quite literally weighing on it. The mass of human-produced materials far exceeds the total biomass. For more info, check out our article: www.lbscience.org/en/2025/08/1...
We Miss the Forest for the Concrete - Little, Big Science
The first comprehensive quantitative estimate of global biomass was published in a 2018 study led by Dr. Yinon Bar-On and Professor Ron Milo of the Weizmann Institute [1]. Global biomass refers to th...
www.lbscience.org
August 28, 2025 at 4:46 PM
🧪 The toll we are taking on our Earth🌎 is quite literally weighing on it. The mass of human-produced materials far exceeds the total biomass. For more info, check out our article: www.lbscience.org/en/2025/08/1...
Reposted by Yannai A. Gonczarowski
🧪 Does our 🧠 light up like a 💡? Well.. not quite, but neurons do emit photons in the visible-light spectrum. These brain “biophotons” may serve another layer of complexity in the marvelous world of neuronal function. Read more about the brain’s “aura” here: www.lbscience.org/en/2025/08/2...
Does the Brain Have an Aura? - Little, Big Science
The human brain is an extremely complex organ. Billions of neurons and other cells, which communicate with each other through a wide variety of electrical and chemical signals, underlie all of our emo...
www.lbscience.org
August 27, 2025 at 1:56 PM
🧪 Does our 🧠 light up like a 💡? Well.. not quite, but neurons do emit photons in the visible-light spectrum. These brain “biophotons” may serve another layer of complexity in the marvelous world of neuronal function. Read more about the brain’s “aura” here: www.lbscience.org/en/2025/08/2...
Reposted by Yannai A. Gonczarowski
🧪August is the month of RNA🌞 in honor of the first codon AUG. For more about the fascinating world of RNA, which is at the forefront of new therapeutics from RNAi, to mRNA vaccines, check out our article: www.lbscience.org/en/2024/08/0...
#WorldRNADay
@lbscience.org
#WorldRNADay
@lbscience.org
Happy RNA Day! - Little, Big Science
Every year, we celebrate World RNA Day on the first of August. Why on August 1? Because August is abbreviated as AUG, which is also the start codon in most RNA molecules from which the ribosome produc...
www.lbscience.org
August 11, 2025 at 2:05 PM
🧪August is the month of RNA🌞 in honor of the first codon AUG. For more about the fascinating world of RNA, which is at the forefront of new therapeutics from RNAi, to mRNA vaccines, check out our article: www.lbscience.org/en/2024/08/0...
#WorldRNADay
@lbscience.org
#WorldRNADay
@lbscience.org
Reposted by Yannai A. Gonczarowski
🧪Our organs-on-chips for personalized cancer treatment. #MedSky
Coupling #organoids formed from esophageal adenocarcinoma biopsies with the @wyssinstitute.bsky.social #organ-chip tech, scientists at @mcgill.ca developed a new tool for predicting chemotherapy responses & testing alternative therapies.
wyss.harvard.edu/news/precisi...
#cansky 🧪
wyss.harvard.edu/news/precisi...
#cansky 🧪
Precision oncology Organ Chip platform accurately and actionably predicts chemotherapy responses of patients suffering from esophageal adenocarcinoma
By Benjamin Boettner (BOSTON) — Esophageal adenocarcinoma (EAC), one of two major forms of esophageal cancer, is the sixth most deadly cancer worldwide for which no effective targeted therapy exists. ...
wyss.harvard.edu
July 22, 2025 at 3:21 AM
🧪Our organs-on-chips for personalized cancer treatment. #MedSky
Reposted by Yannai A. Gonczarowski
🧪🫀In this "Picture in Science" we recreated the cellular process happening in plaques to model #atherosclerosis in a dish.
www.lbscience.org/en/2024/09/1...
#microscopy #macrophages #hypercholesterolemia
www.lbscience.org/en/2024/09/1...
#microscopy #macrophages #hypercholesterolemia
An Immune Cell Swallowing “Bad” Cholesterol - Little, Big Science
In atherosclerosis, fatty deposits containing cholesterol molecules carried by proteins form on the walls of blood vessels. One of these protein-cholesterol structures is LDL, which is colloquially ca...
www.lbscience.org
July 11, 2025 at 10:25 PM
🧪🫀In this "Picture in Science" we recreated the cellular process happening in plaques to model #atherosclerosis in a dish.
www.lbscience.org/en/2024/09/1...
#microscopy #macrophages #hypercholesterolemia
www.lbscience.org/en/2024/09/1...
#microscopy #macrophages #hypercholesterolemia
Reposted by Yannai A. Gonczarowski
Amazing workshop at @laws.ucl.ac.uk yesterday. Presented work w/@sarafish.bsky.social @yannaigonch.bsky.social in panel w/speakers from the European Commission, CMA, AdlC, & HCC. So gratifying to see our research making positive impact in the world. Thanks much @ilianos.bsky.social for inviting us!
Computational Competition Law and Public Policy Workshop
CLES@UCL Second Workshop - Organised and chaired by Ioannis Lianos (UCL)
www.ucl.ac.uk
June 20, 2025 at 9:31 PM
Amazing workshop at @laws.ucl.ac.uk yesterday. Presented work w/@sarafish.bsky.social @yannaigonch.bsky.social in panel w/speakers from the European Commission, CMA, AdlC, & HCC. So gratifying to see our research making positive impact in the world. Thanks much @ilianos.bsky.social for inviting us!
Reposted by Yannai A. Gonczarowski
🧪 Within dark times, there is some light for children with rare diseases🌈 🦓
#genetherapy success in treating the deadly hereditary disease of leukocyte adhesion deficiency.
www.lbscience.org/en/2025/06/1...
@lbscience.org
#genetherapy success in treating the deadly hereditary disease of leukocyte adhesion deficiency.
www.lbscience.org/en/2025/06/1...
@lbscience.org
Sticking to Life - Little, Big Science
Rare hereditary diseases that affect as few as one newborn in a million pose a special challenge for patients and their families because so little information and research are available. These conditi...
www.lbscience.org
June 17, 2025 at 2:58 PM
🧪 Within dark times, there is some light for children with rare diseases🌈 🦓
#genetherapy success in treating the deadly hereditary disease of leukocyte adhesion deficiency.
www.lbscience.org/en/2025/06/1...
@lbscience.org
#genetherapy success in treating the deadly hereditary disease of leukocyte adhesion deficiency.
www.lbscience.org/en/2025/06/1...
@lbscience.org
The purest form of pride is when our children surpass us.
@eleeshimshoni.bsky.social
@eleeshimshoni.bsky.social
June 9, 2025 at 1:13 PM
The purest form of pride is when our children surpass us.
@eleeshimshoni.bsky.social
@eleeshimshoni.bsky.social
A petition to keep politics out of the International Mathematical Olympiad. I signed, and encourage you to sign too.
docs.google.com/forms/d/e/1F...
docs.google.com/forms/d/e/1F...
Keep Politics out of the International Mathematical Olympiad
To Members of the IMO Board,
We are writing in response to a petition calling for the suspension of Israel’s membership in the International Mathematical Olympiad:
https://docs.google.com/document/d/1...
docs.google.com
June 8, 2025 at 7:15 PM
A petition to keep politics out of the International Mathematical Olympiad. I signed, and encourage you to sign too.
docs.google.com/forms/d/e/1F...
docs.google.com/forms/d/e/1F...
Reposted by Yannai A. Gonczarowski
🧪 How do antibiotics negatively affect the intestines? Surprisingly it's not only by throwing our microbiome out of whack. The answer lies within the sticky mucus layer that serves as our first line of defense against the outside world:
www.lbscience.org/en/2024/09/2...
@lbscience.org
www.lbscience.org/en/2024/09/2...
@lbscience.org
The Dark Side of Antibiotics - Little, Big Science
It may surprise some of you to learn that the inside of your digestive tract, from the esophagus and all the way through your intestines, is actually part of the body’s external environment. Much like...
www.lbscience.org
May 11, 2025 at 2:47 AM
🧪 How do antibiotics negatively affect the intestines? Surprisingly it's not only by throwing our microbiome out of whack. The answer lies within the sticky mucus layer that serves as our first line of defense against the outside world:
www.lbscience.org/en/2024/09/2...
@lbscience.org
www.lbscience.org/en/2024/09/2...
@lbscience.org
Reposted by Yannai A. Gonczarowski
🧬אנחנו בתחילתה של מהפכה בתהליך פיתוח התרופות. בתקווה שגמישות ובחירת מודלים למחלות לפי המתאים ביותר יקרבו את היום שבוא תרופות חדשות יגיעו לחולים.
#פידמדע
90% מהתרופות שעובדות בעכברים נכשלות בבני אדם - וה-FDA מגיב!
הFDA החליט לאחרונה: ניסויים בבעלי חיים כבר לא חובה בכל שלב בפיתוח תרופות. במקום זאת, חברות יוכלו להשתמש בטכנולוגיות חדשניות כמו "איברים-על-שבב" - מודלים המבוססים על תאים אנושיים שמדמים פעילות של איברים ומחלות.⬇️
90% מהתרופות שעובדות בעכברים נכשלות בבני אדם - וה-FDA מגיב!
הFDA החליט לאחרונה: ניסויים בבעלי חיים כבר לא חובה בכל שלב בפיתוח תרופות. במקום זאת, חברות יוכלו להשתמש בטכנולוגיות חדשניות כמו "איברים-על-שבב" - מודלים המבוססים על תאים אנושיים שמדמים פעילות של איברים ומחלות.⬇️
May 5, 2025 at 3:54 PM
🧬אנחנו בתחילתה של מהפכה בתהליך פיתוח התרופות. בתקווה שגמישות ובחירת מודלים למחלות לפי המתאים ביותר יקרבו את היום שבוא תרופות חדשות יגיעו לחולים.
Congrats to Sergiu Hart, perhaps the quickest thinker I know, and a wonderful mentor, coauthor, and person, for being elected as an International Member of the National Academy of Sciences!
www.nasonline.org/news/2025-na...
www.nasonline.org/news/2025-na...
National Academy of Sciences Elects Members and International Members - NAS
WASHINGTON — The National Academy of Sciences announced today the election of 120 members and 30 international members in recognition of their distinguished and continuing achievements in original res...
www.nasonline.org
May 4, 2025 at 3:45 PM
Congrats to Sergiu Hart, perhaps the quickest thinker I know, and a wonderful mentor, coauthor, and person, for being elected as an International Member of the National Academy of Sciences!
www.nasonline.org/news/2025-na...
www.nasonline.org/news/2025-na...
Great talk by @t8el.bsky.social at our econ theory seminar. As an added bonus, he publicly credited me for what he called two "Yannai tricks" in his slides:
1. Adding photos of his kids
2. Using memes
Happy to see my efforts of enriching econ with computer science techniques are bearing fruit!
1. Adding photos of his kids
2. Using memes
Happy to see my efforts of enriching econ with computer science techniques are bearing fruit!
April 4, 2025 at 12:20 AM
Great talk by @t8el.bsky.social at our econ theory seminar. As an added bonus, he publicly credited me for what he called two "Yannai tricks" in his slides:
1. Adding photos of his kids
2. Using memes
Happy to see my efforts of enriching econ with computer science techniques are bearing fruit!
1. Adding photos of his kids
2. Using memes
Happy to see my efforts of enriching econ with computer science techniques are bearing fruit!
The problem isn't the people who are skeptical about everything they read online today because it's April 1. The problem is the people who aren't skeptical about everything they read online every other day.
April 1, 2025 at 6:29 PM
The problem isn't the people who are skeptical about everything they read online today because it's April 1. The problem is the people who aren't skeptical about everything they read online every other day.
Looking forward to talking tomorrow to this wonderful community about my new paper with @ellasegev.bsky.social.
Thanks much for the invite, Maya Eden and @pgpiacquadio.bsky.social.
Thanks much for the invite, Maya Eden and @pgpiacquadio.bsky.social.
Tomorrow, Normative Economics and Economic Policy webinar by @yannaigonch.bsky.social!
Join us at 5pm Paris time (11am EDT) to hear about:
"Quantifying Inefficiency," joint with Ella Sagev.
Link: arxiv.org/abs/2412.11984
For the zoom invite, email us!
Join us at 5pm Paris time (11am EDT) to hear about:
"Quantifying Inefficiency," joint with Ella Sagev.
Link: arxiv.org/abs/2412.11984
For the zoom invite, email us!
March 30, 2025 at 9:22 PM
Looking forward to talking tomorrow to this wonderful community about my new paper with @ellasegev.bsky.social.
Thanks much for the invite, Maya Eden and @pgpiacquadio.bsky.social.
Thanks much for the invite, Maya Eden and @pgpiacquadio.bsky.social.
Reposted by Yannai A. Gonczarowski
Tomorrow, Normative Economics and Economic Policy webinar by @yannaigonch.bsky.social!
Join us at 5pm Paris time (11am EDT) to hear about:
"Quantifying Inefficiency," joint with Ella Sagev.
Link: arxiv.org/abs/2412.11984
For the zoom invite, email us!
Join us at 5pm Paris time (11am EDT) to hear about:
"Quantifying Inefficiency," joint with Ella Sagev.
Link: arxiv.org/abs/2412.11984
For the zoom invite, email us!
March 30, 2025 at 9:54 AM
Tomorrow, Normative Economics and Economic Policy webinar by @yannaigonch.bsky.social!
Join us at 5pm Paris time (11am EDT) to hear about:
"Quantifying Inefficiency," joint with Ella Sagev.
Link: arxiv.org/abs/2412.11984
For the zoom invite, email us!
Join us at 5pm Paris time (11am EDT) to hear about:
"Quantifying Inefficiency," joint with Ella Sagev.
Link: arxiv.org/abs/2412.11984
For the zoom invite, email us!
What do a computer scientist, an economist & two legal scholars have in common? They all worry about algorithmic collusion. Join us for an interdisciplinary online event on March 21 at 1PM Central Time.
1/2
1/2
CS+Law
When: Third Friday of each month at 1 PM Central Time (sometimes fourth Friday; next workshop: Friday, March 21, 1:00 to 3:00 p.m. Central Time)
What: First 90 minutes: Two presentations of CS+Law wo...
www.cslawworkshop.org
March 18, 2025 at 12:47 AM
What do a computer scientist, an economist & two legal scholars have in common? They all worry about algorithmic collusion. Join us for an interdisciplinary online event on March 21 at 1PM Central Time.
1/2
1/2
Reposted by Yannai A. Gonczarowski
#פידמדע
בקטנה:
מה עושה ביולוגית?
ד"ר עלי שמשוני היא ד״ר לביולוגיה ממכון ויצמן.
כיום עושה פוסט־דוקטורט בMIT ועובדת על פיתוח תרופות שמתערבות ביחסי הגומלין בין גידולים סרטניים לסביבתם, באמצעות כלים של אינטליגנציה מלאכותית, הנדסת רקמות וכימיה סינתטית.
מנהלת מדעית ב"מדע גדול, בקטנה". ⬇️
בקטנה:
מה עושה ביולוגית?
ד"ר עלי שמשוני היא ד״ר לביולוגיה ממכון ויצמן.
כיום עושה פוסט־דוקטורט בMIT ועובדת על פיתוח תרופות שמתערבות ביחסי הגומלין בין גידולים סרטניים לסביבתם, באמצעות כלים של אינטליגנציה מלאכותית, הנדסת רקמות וכימיה סינתטית.
מנהלת מדעית ב"מדע גדול, בקטנה". ⬇️
March 7, 2025 at 3:57 PM
#פידמדע
בקטנה:
מה עושה ביולוגית?
ד"ר עלי שמשוני היא ד״ר לביולוגיה ממכון ויצמן.
כיום עושה פוסט־דוקטורט בMIT ועובדת על פיתוח תרופות שמתערבות ביחסי הגומלין בין גידולים סרטניים לסביבתם, באמצעות כלים של אינטליגנציה מלאכותית, הנדסת רקמות וכימיה סינתטית.
מנהלת מדעית ב"מדע גדול, בקטנה". ⬇️
בקטנה:
מה עושה ביולוגית?
ד"ר עלי שמשוני היא ד״ר לביולוגיה ממכון ויצמן.
כיום עושה פוסט־דוקטורט בMIT ועובדת על פיתוח תרופות שמתערבות ביחסי הגומלין בין גידולים סרטניים לסביבתם, באמצעות כלים של אינטליגנציה מלאכותית, הנדסת רקמות וכימיה סינתטית.
מנהלת מדעית ב"מדע גדול, בקטנה". ⬇️
Reposted by Yannai A. Gonczarowski
On #IWD2025, a story about #womenshealth and the power of #scicomm 🧪: Last year I published an article on @lbscience.org about Dr. Marlena Fejzo's personal and professional mission to hunt down the cause of morning sickness and to find a treatment for its most severe form—hyperemesis gravidarum (HG)
March 9, 2025 at 4:49 AM
On #IWD2025, a story about #womenshealth and the power of #scicomm 🧪: Last year I published an article on @lbscience.org about Dr. Marlena Fejzo's personal and professional mission to hunt down the cause of morning sickness and to find a treatment for its most severe form—hyperemesis gravidarum (HG)
Come join at 3:30 Eastern today to hear me talk about algorithmic collusion by large language models, as well as a sneak peak into a new, not-yet-online, paper!
@sarafish.bsky.social @ranshorrer.bsky.social #econsky
@sarafish.bsky.social @ranshorrer.bsky.social #econsky
Today’s the day! 🎉 See you at 11 AM ET in the virtual venue (www.virtualchair.net/events/sigecom) but make sure you’ve registered first or you won’t be able to get in!
Registration: SIGecom Winter Meeting 2025
March 6, 2025 on Virtual Chair.
forms.gle
March 6, 2025 at 4:45 PM
Come join at 3:30 Eastern today to hear me talk about algorithmic collusion by large language models, as well as a sneak peak into a new, not-yet-online, paper!
@sarafish.bsky.social @ranshorrer.bsky.social #econsky
@sarafish.bsky.social @ranshorrer.bsky.social #econsky