Meta and Google Trial Examines Addictive Design Claims

A legal proceeding in Los Angeles is examining whether features like infinite scroll and autoplay on Meta’s Instagram and Google’s YouTube constitute addictive design elements that harm users, particularly minors. The case involves over 1,600 plaintiffs who allege platform developers intentionally created mechanisms that exploit psychological vulnerabilities. Snapchat and TikTok resolved with plaintiff K.G.M. prior to trial for undisclosed amounts, leaving Meta and Google as the remaining defendants. The trial, now in its final phase, could establish new standards for corporate accountability in product design.

Plaintiffs, led by attorney Mark Lanier, argue that Meta and Google engineered their platforms to prioritize engagement over user well-being. Key to their case are features like infinite scroll and autoplay, which they claim generate continuous content loops mimicking gambling and substance use reward systems. Leaked internal Meta documents from 2021, known as the ‘Facebook Papers,’ allegedly show employees likening Instagram’s design to ‘pushing drugs’ and ‘casinos,’ indicating corporate awareness of potential risks.

Lanier stated, ‘These features are not optional—they are engineered to keep users engaged indefinitely.’ Plaintiffs reference a National Institutes of Health (NIH) study tracking 11,000 children and adolescents over one year, which found that children who use social media extensively and are not initially depressed develop depression after prolonged use. The study, published in JAMA Pediatrics, used longitudinal data to examine the link between social media use and mental health outcomes, with participants reporting daily usage patterns and psychological assessments.

They argue that platforms like YouTube, with its autoplay function, trap users in endless video feeds, while Instagram’s infinite scroll eliminates natural stopping points, encouraging compulsive checking. Plaintiffs also emphasize K.G.M.’s testimony, where she described spending up to 12 hours daily on social media, leading to depression, anxiety, and suicidal thoughts.

Meta and Google’s legal team, including attorneys Paul Schmidt and Luis Li, dispute the claim that their platforms are inherently addictive. They assert that features like infinite scroll and autoplay are optional and can be disabled, highlighting user agency. Schmidt referenced the plaintiff’s own testimony, where K.G.M. admitted spending only 29 minutes daily on YouTube, far below addiction thresholds.

Li noted, ‘There is no consensus in the scientific community that social media use constitutes an addiction.’ The defense highlights the absence of a formal diagnosis for ‘social media addiction’ in the DSM-5 and cites studies showing only minor correlations between heavy use and mental health issues. They also argue that internal documents were taken out of context and that platforms are not uniquely harmful compared to other media.

The defense further points out that K.G.M.’s 10,000+ pages of medical records show no diagnosis of YouTube addiction, with her treatment focused on depression and anxiety rather than platform-specific issues. This challenges the plaintiffs’ assertion that social media use directly caused her mental health struggles.

Legal Theory: Design as a Product Defect

The trial hinges on a novel legal theory: whether platform design itself can be considered a product defect under negligence or strict liability laws. This challenges Section 230 of the Communications Decency Act, which historically shielded tech companies from liability for user-generated content. Plaintiffs argue that design choices—such as variable reward systems and notification timing—should be treated like safety features in physical products, subject to safety obligations.

Judge Carolyn Kuhl of the California Superior Court ruled in 2025 that the case warranted a jury trial, distinguishing between content moderation (protected by Section 230) and design features that shape user behavior. The outcome could set a precedent for holding tech companies accountable for the psychological impacts of their products, potentially reshaping regulatory frameworks globally. Meta CEO Mark Zuckerberg testified before the jury on Feb. 18, 2026, addressing the company’s stance on design choices.

Broader Implications: Global Regulatory Shifts

The trial has sparked a broader debate over the scientific validity of ‘social media addiction.’ While some researchers, like Stanford’s Anna Lembke, argue that platforms exploit neurochemical rewards akin to gambling, others, such as Amy Orben, caution that large-scale studies show only small average associations between social media use and reduced well-being. Orben’s work suggests that while some users may experience severe harms, the term ‘addiction’ is overapplied to the general population.

Internal Meta documents, including the ‘Facebook Papers,’ reveal that researchers flagged concerns about Instagram’s impact on adolescent body image, complicating the defense’s claim that companies were unaware of potential harms. Even if the jury rules in favor of the plaintiffs, the trial’s significance extends beyond the courtroom. Over 20 U.S. states have enacted laws restricting children’s social media use, including mandates to limit screen time and require parental controls. Globally, countries like the U.K., Australia, Brazil, and France are also advancing specific legislation, including bans on social media for those under 16. These measures reflect growing public pressure to hold tech companies accountable for the psychological impacts of their products.

Legal analyst Jennifer Daskal noted, ‘This trial is about whether tech companies can continue to operate as if their products are neutral.’ If the jury finds liability, it may compel platforms to redesign features like autoplay and infinite scroll, marking a turning point in the balance between innovation and public health.

The jury’s verdict, expected in the coming weeks, will not only determine the fate of K.G.M.’s case but also shape the future of tech accountability. As the world grapples with the psychological impacts of digital platforms, the trial underscores the urgent need for clearer guidelines on how technology shapes human behavior.