Meta is on trial in a major lawsuit brought by US states alleging the company hooked children on Facebook and Instagram, a court heard as proceedings got under way.
As the trial opened, Meta's lawyers pushed back on the central premise of the case, arguing that social media addiction does not exist. The states, by contrast, contend the company's platforms were designed in ways that fostered compulsive use among young people.
The case represents one of the most significant legal challenges yet to how large tech platforms engage young users, and it arrives amid mounting scrutiny of social media's impact on children and teenagers.