In January, Mark Zuckerberg announced that Meta’s nine-year-old fact-checking system, which relied in part on third-party organizations, would come to an end. The tech company is instead set to adopt a “community notes” model reminiscent of what is used by Elon Musk ’s X, which relies on users instead of experts to flag misinformation.

Cancer is one of the leading causes of fatalities globally. Linkedin co-founder Reid Hoffman has launched a startup with the intention of using AI to fuel drug discovery. He is partnering with author,