As Meta Platforms faces key trials in California and New Mexico in February on allegations that the addictive design of Facebook and Instagram caused a mental health crisis among US teens, the company’s leadership repeated warnings that Meta risks “a material loss” in the outcome of the trials. Meanwhile, Meta said that its agreement with the European Commission for less-personalized ads could cause revenue “headwinds” in Europe. Mark Zuckerberg said it would be hard to imagine a world, “in several years, where most glasses that people wear aren’t AI glasses.”