AI made students faster.
AI made their homework better.
Then came the exam.
Students using AI completed homework roughly 20 minutes faster and scored 20+ points higher on their assignments.
But when they had to perform without AI, their exam scores were roughly 15 points lower.
That is the uncomfortable part of the AI in education debate.
AI can improve the output while weakening the learning.
26,811 students. Ages 12 to 18.
The real question is no longer whether students should use AI.
It is this:
How do we make AI a tool for learning, rather than a substitute for thinking?
🚨 ULTIMA HORA: metieron a 56 personas en una máquina de resonancia magnética con vídeos cortos y grabaron el momento exacto en el que el cerebro apaga su propio botón de STOP.
La Universidad de Zhejiang lo acaba de publicar en NeuroImage.
Cuando el vídeo gusta, dos zonas caen POR DEBAJO del nivel que tenían con la pantalla apagada:
- El cingulado anterior dorsal, la alarma que grita "esto lleva demasiado rato"
- El prefrontal dorsolateral, la mano que ejecuta la orden de cerrar la app
Las dos se van a negro al mismo tiempo.
Y no era sueño ni aburrimiento. El córtex visual seguía a pleno rendimiento. Ojos encendidos, control apagado.
Lo que nadie quiere oír: ninguno de los 56 tenía perfil de adicción. Adultos sanos, 23 años de media. Esto es lo que le pasa a un cerebro normal en 6 minutos.
Hay quien resiste mejor, y depende del glutamato que tengas en reposo. Nadie elige eso.
El detalle que casi nadie cuenta: usaron clips grabados, ni TikTok ni su algoritmo. El daño no lo hace el feed. Lo hace el formato. Y el formato ya está en todas las apps que tienes abiertas.
In 1977, Brazil grew 47 million tons of grain.
This year, Brazil will grow 354 million tons.
That is more than 7 times more food.
The land used grew by less than half…
But every hectare now feeds 3 times more people.
Brazil pulled this off on tropical soil that experts said could never feed the world.
The United States took 50 years to do something similar.
Brazil did it in about 25, on harder ground, with less money.
A small group of scientists at Embrapa cracked the code…
They taught the Cerrado, once called a wasteland, how to feed the planet.
Today the Cerrado grows nearly half of Brazil’s soybeans.
Norman Borlaug, the Nobel Prize winner who started the Green Revolution, called it one of the greatest achievements of the 20th century.
The biggest farming miracle in human history happened in slow motion while the world looked away.
The next 25 years will dwarf the last 50.
The country that controls the food controls the century.
Quero um projeto de lei para proteger a minoria mais ameaçada deste país: pessoas com QI acima de 120. O sofrimento dessa minoria é indescritível, e se eu tentasse descrever não faria diferença, porque a maioria não teria a capacidade de entender.
After months in foster care, this little girl was finally adopted. The moment she saw her new dad, she ran to him, giggling and calling him "Daddy" for the first time..
A onda verde e amarelo está só no começo. Vamos para cima da esquerda, vamos para cima de quem atrasa o nosso País. A missão é clara: resgatar o Brasil e voltarmos para o caminho da prosperidade!
We are hearing an MIT nuclear scientist professor - Nuno Loureiro age 47 - has been murdered in his home in Brookline, MA.
Loureiro has been reported to be Jewish with strong pro-Israel views.
The Night of the Bookstores has started in Buenos Aires, Argentina.
200,000 people are out in the streets and they are forecasted to buy books worth nearly $400 million
🇦🇷
This isn't Islamabad, or Karachi, or Kabul, this is New York City, what are we allowing here
Raise your hand ✋️ if you want a ban on all Muslims seeking asylum in the United States
I'm gonna tag @SecRubio and if we get a good enough response he'll see this
🇧🇷 | HONEST QUESTION: In Brazil, is the Globo television network financed by drug trafficking? Why does the traditional Brazilian media try to convince the population to defend criminals?
🚨 Anyone surprised?
In a major operation, Rio de Janeiro police seized rifles originating from Venezuela and Cuba.
This should deeply concern every democratic leader around the world.
Weapons from authoritarian regimes are now fueling violence on Brazilian soil — a clear sign of growing regional infiltration that threatens not only Brazil, but the entire Western Hemisphere.