Antonio Pedro Ramos, PhD

Our new paper, with @chadhazlett and Stephen Smith just got published on Nature Scientific Advances: #Sec15" target="_blank" rel="nofollow noopener">nature.com/articles/s4159…

ADHD diagnoses spike 14% on Halloween. Not because more kids suddenly have ADHD — because candy-hyped children look like textbook cases. Context is contaminating what doctors treat as objective clinical judgment.

This is BELT TREATMENT 🔥 🇺🇸 Trump –– I feel that countries like Japan and China don't have courage or will to open the Strait of Hormuz 🇨🇳 CHINA –– 🔥 "The Strait of Hormuz was already open before the war. It was you who created war out of nothing and got it closed for the rest of the world" 😂 No one tolerating nonsense

BREAKING: live look at President Trump and his Secretary of War Pete Hegseth, planning out the military genocide of the entire Iranian people.

25TH AMENDMENT!!! Not a single bomb has dropped on America. We cannot kill an entire civilization. This is evil and madness.

A ameaça de Trump de acabar com a civilização persa — em essência, uma ameaça de genocídio — é um presente para o regime iraniano e marginaliza completamente os grupos mais moderados no país.

I've taught European history for 30 years. Americans have always asked me how the Holocaust was possible, how Germans could have enabled a madman reveling in mass murder to carry out his plans. Now we can see in real time how this is enabled; now we have front-row seats.

it looks bad for the us president to threaten genocide

Trump on Muller's death: "I'm glad he's dead". De mortuis nihil nisi bene. Decent humans never speak ill of the dead. But we know that, aside from his inability to grasp war, Trump is not a decent human being.

Admiral Yamamoto, seen here realizing he’d totally forgot to tell Trump he was going to attack Pearl Harbor.

So Calligulino really, really thought that Japan was an ally in 1941?

Japanese Report: "Why didn't you tell US allies about the war before attacking Iran?" Donald Trump: "Who knows better about surprises then Japan. Why didn't you tell me about Pearl Harbor?" This man belong in a psychiatric ward.

@mgaldino Eles vão usar de qualquer forma. Better teach them ...

AI produz ansiedade em mim, mas fico mais ansioso ainda pelos estudantes. Devo incentivá-los a usar agentes? Eles saberão usar? Ou vão pegar os atalhos e atrofiar suas habilidades, que ainda estão aprendendo? A tentação não é grande demais, meio como criança com tela?

@Noahpinion Jokes apart, you clearly don't understand LLM.

I just tell Claude my desired conclusions and it makes me a mathematical model that supports those conclusions, and calibrates that model to whatever. Claude has fully replaced Acemoglu's job

Latin America has a serious pipeline problem in mathematics education. I regularly interview candidates, and one thing becomes clear very quickly: even graduates from top universities in the region often lack solid mathematical foundations. That’s not a talent issue. The talent is clearly there. It’s a system problem. You can see it in outcomes. Latin America rarely appears near the top in major international mathematics competitions, despite having a large population and plenty of capable students. The training pipeline simply isn’t producing enough mathematically strong graduates. Because of this, for many companies in the region, a graduate from a mid-tier U.S. STEM university is often perceived as significantly stronger than a graduate from even a leading local university. That gap says a lot about the structure of the education system. Brazil might be a partial exception — it has several strong institutions and a more developed research ecosystem — but across much of the region the mathematics pipeline still needs serious strengthening. The potential is there. The system just needs to unlock it.

New course on generative AI for behavioral science statmodeling.stat.columbia.edu/2026/03/10/new…

@goescarlos @GesteiraPedro Viu isso ? x.com/anup_malani/st…

As cotas foram uma das maiores revoluções educacionais do país. As universidades públicas se transformaram de um veículo de perpetuação de desigualdades em um veículo de mobilidade social e inclusão. Foi muito rápido, mudou tudo em 15 anos atrás.

@rnishimura Acho que passou o olho no green card. Sinceramente eu não lembro: Foi muito rápido. ‘Welcome back sir’

@apr5356 Não chegaram a nem ver seu passporte ou green card também?

Voltamos para os EUA ontem. Nunca passei pela imigração tão rápido. O agente apenas usou reconhecimento facial, confirmou que era a gente mesmo e liberou. Sequer viu nossos passaportes!

@rnishimura Saio e entro sempre sozinho. Ano passado estive entrando e saindo 4x. Não sou cidadão: sou green card holder. Geralmente uso passaporte brasileiro. No problem.

@apr5356 Pois é, mudou bastante desde que eu sai da última vez, há uns dois anos. Perguntaram até qual era a data de nascimento dos meus filhos. Dessa vez fui com a família inteira, então pode ter ajudado. Da próxima vou sozinho, então veremos!

There is a glaringly obvious message for Europe in the 28 point plan: This is the end of the end. We have been told repeatedly and unambiguously that Ukraine’s security, and therefore Europe’s security, will be Europe’s responsibility. And now it is. Entirely. If you are a European leader asking your team to book you on the next flight to Washington to go talk to Daddy, please don’t. Not without a plan, not cap in hand, not humiliating us all in front of the cameras at the Oval office. Europe is our continent, our future is decided here, not there. We aren’t poor, we have options, we can finally decide to assist Ukraine to the full extent of our very extensive capabilities, restore European dignity and defend Europe. Or we can continue to wait for the miracle we now know is not coming.