Mark Zuckerberg and his Ray-Ban entourage have their day in court

Mark Zuckerberg, CEO of Meta, appeared in a Los Angeles courtroom on February 18, 2026, to testify in a landmark trial concerning the potential harms of social media. His arrival, notably, was accompanied by an entourage whose members appeared to be wearing Meta’s Ray-Ban smart glasses. Zuckerberg’s testimony came as he passed parents who have lost children due to issues they attribute to social media platforms.

The Core of the Legal Challenge

The trial centres on a lawsuit brought by K.G.M., a 20-year-old plaintiff who alleges that design features of Meta and Google’s apps fostered compulsive use and contributed to mental health issues. Meta and Google generally deny these claims. Zuckerberg spent approximately eight hours on the stand, responding to questions from lead litigator Mark Lanier, often in what was described as a matter-of-fact manner.

Contradictions and Design Decisions

Lanier pressed Zuckerberg on perceived inconsistencies between past statements regarding protecting users under 13 and internal documents suggesting a desire to attract younger users to Facebook and Instagram. He also questioned Zuckerberg about the decision to not permanently ban AR filters that alter facial appearances, simulating cosmetic surgery.

Zuckerberg defended Meta’s decisions by arguing the company strives to balance free expression with potential harms. He explained that the decision regarding AR filters stemmed from a lack of compelling evidence demonstrating significant harm and a reluctance to restrict user expression without such evidence. He stated, “On some level you don’t really build social media apps unless you care about people being able to express themselves.”

Internal Debate and Prioritization

Lanier suggested Meta prioritized user engagement over wellbeing. Zuckerberg countered by stating Meta has shifted its internal focus to increasing the value users derive from the platform, even if it results in short-term usage declines. He acknowledged internal discussions about the potential impact of banning filters on user engagement, but downplayed their significance, noting the filters weren’t widely popular.

Zuckerberg admitted that not all Meta employees agreed with the decision regarding AR filters, citing concerns from colleagues about potential body image issues. He acknowledged the difficulty in definitively proving causal harm from such features, stating, “There won’t be hard data to prove causal harm for many years.” He also revealed he does not hold a college degree.

What’s Next?

The trial is expected to continue for several weeks. Jurors will hear testimony from former Meta employees, including those who disagreed with the company’s approach to teen safety, as well as executives from YouTube, which is also named in the lawsuit. A possible next step could be further examination of internal Meta communications and research data. It is also likely that the court will consider the arguments presented by both sides regarding the extent of Meta’s responsibility for the wellbeing of its users.

Frequently Asked Questions

What was Mark Zuckerberg’s role in the trial?

Mark Zuckerberg testified as a key witness in a trial concerning allegations that Meta’s platforms contributed to mental health issues in users, specifically K.G.M.

What was the central argument of the plaintiff?

The plaintiff, K.G.M., claims that design features of Meta and Google’s apps encouraged compulsive use and led to mental health problems.

What was Zuckerberg’s defense regarding the AR filters?

Zuckerberg stated that the decision to allow some AR filters was based on a lack of compelling evidence demonstrating significant harm and a desire to avoid restricting user expression.

As this high-profile case unfolds, what level of responsibility should social media companies bear for the wellbeing of their users?