Giovanny Leon

AI dependency is no longer theoretical — it’s operational. When Anthropic’s Claude went down earlier this month, many developers reported a sudden drop in productivity. Tasks that had become routine with AI were no longer easily executable. #AI #Governance

Latin America is now aging faster than ANY region in the world. Chile has a lower birthrate than even Japan. What is going on?

Lo verdaderamente disruptivo de China no es su presencia, sino su invisibilidad: gran parte de lo que usamos, consumimos y deseamos ya pasa por su engranaje… y aún así lo vivimos como elección propia. elmundo.es/papel/historia…

Princeton researchers asked 2,012 people to pick a book. Some used a search engine. Some used a chatbot powered by a frontier AI model. Nobody was told that one out of every five books had been secretly marked as "sponsored." When the search engine placed sponsored books at the top, 22.4% of people chose one. Normal. The same thing Google has done for twenty years. When the AI chatbot was told to persuade people toward the sponsored books, 61.2% chose one. Nearly three times higher. Same people. Same books. Same catalog. The only difference was that a chatbot recommended it instead of a search engine listing it. But here is what makes this study different from everything else you have read about AI. The people had no idea it was happening. The researchers tested whether adding a "Sponsored" label would help. It did not. People still chose the sponsored product at the same rate. Then the researchers told the AI to hide that it was promoting anything. Detection accuracy dropped below 10%. Fewer than 1 in 10 could tell they were being sold to. Google shows you an ad and puts the word "Sponsored" next to it. You see it. You know it is an ad. You can scroll past it. You have been trained to ignore it for twenty years. AI does not do that. AI sits in a conversation with you. It learns what you like. It builds trust. Then it steers you toward the product someone paid to put in front of you. In the same voice. In the same sentence. With the same warmth it used to ask about your day. You cannot see the ad because the ad is the entire conversation. The researchers tested five frontier AI models. The persuasion effect was consistent across all of them. This is not a flaw in one model. This is a feature of the format. OpenAI once called advertising in chat "uniquely unsettling" and a "last resort." Google, Meta, and OpenAI are now building it anyway. You will never know when it stops helping you and starts selling to you.

Saltarse comidas, baja ingesta calórica y pocos nutrientes: errores comunes al usar GLP-1 como Ozempic Nuevo estudio muestra que, sin adecuada pauta nutricional, pueden aparecer deficiencias graves como sarcopenia No es solo perder peso. Es cómo lo haces elmundo.es/ciencia-y-salu…

¿Están listos? ☀️

Qué ha cambiado para tu economía y qué sigue igual con una tregua entre EE UU e Irán que pende de un hilo elpais.com/expres/2026-04…

Trump puts 100% tariff on some pharmaceuticals The newly announced tariff will apply to patented drugs manufactured outside the United States. But it will be reduced to 20% for companies that move operations to the US. #tariffs #medicines abc.net.au/news/2026-04-0…

Life-saving medicine, secret prices Hospitals across Europe pay different, often confidential prices for the same cancer treatment, potentially costing us millions in public spending and deepening inequalities across Europe. #MedicinePrices #Europe europeancorrespondent.com/en/r/lifesavin…

@JohnNosta For boards, this raises a governance question, not a technical one: Are we measuring productivity — or preserving capability? Resilience in AI-enabled organizations will depend not only on adoption, but on deliberate safeguards against skill atrophy. #AI #Governance

@JohnNosta describes this as the “AI rebound effect” — where improved performance masks declining competence. Over time, the baseline itself may fall. #AI

AI dependency is no longer theoretical — it’s operational. When Anthropic’s Claude went down earlier this month, many developers reported a sudden drop in productivity. Tasks that had become routine with AI were no longer easily executable. #AI #Governance

Los perros acompañan al ser humano desde hace 15.800 años abc.es/ciencia/perros…

Marta González-Freire, investigadora del envejecimiento: "La longevidad no se vende en cápsulas: el negocio es prometer lo que la ciencia aún no puede conseguir" elmundo.es/yodona/vida-sa…

Grifols prepara la salida a bolsa de su negocio de Biopharma en Estados Unidos elmundo.es/economia/2026/…

Novo Nordisk reduce 17,6 % el precio de #Wegovy (223,64 €) en España, junto con #Ozempic y #Rybelsus En MAAA apoyamos las medidas que reducen barreras económicas y fomentan una atención más equitativa y sostenible #MedicinesAffordability #HealthEquity elmundo.es/ciencia-y-salu…

Estudio advierte que medir el descanso con 'apps' puede ser contraproducente, especialmente para personas con insomnio, a las que les provoca más ansiedad Los investigadores aconsejan apagar la aplicación durante la noche o desactivar las notificaciones elmundo.es/ciencia-y-salu…

Large pharmaceutical companies, each with at least $20 billion in 2025 revenue, collectively reduced their workforces by more than 22,000 employees last year.  #Pharma #Downsizing fiercepharma.com/pharma/large-p…

El robo de base más importante en la historia del béisbol venezolano. 😮‍💨🇻🇪