The Download: Mice with part-human brains and climate tech innovators

This edition of The Download highlights groundbreaking research from Stanford, where scientists have successfully integrated human brain cells into mice, creating rodents with partially human brain cortexes. This experiment aims to advance the study of brain injuries, though it raises significant ethical questions. Additionally, MIT Technology Review has unveiled its annual list of 35 Innovators Under 35, featuring nine young leaders focused on climate and energy solutions, including advancements in lithium extraction, cleaner steel production, and energy-efficient AI. The newsletter also covers a range of critical tech news, including proposed US-China AI safety protocols, OpenAI’s efforts to address model misbehavior, and new legislative measures in the US designed to shift grid costs to data centers to protect consumers from rising energy prices. Other topics include Google's antitrust ad-tech rulings and the use of AI in pharmaceutical research by companies like Novo Nordisk.