In a pivotal case in Los Angeles, social media giants Meta and Google have come under scrutiny as arguments surrounding the addictive nature of their platforms take centre stage. As the trial draws to a close, key figures, including Instagram’s CEO Adam Mosseri, have vehemently denied claims that social media is “clinically addictive”. This ongoing discourse raises critical questions about the impact of design features like infinite scrolling and autoplay videos on user behaviour, particularly among vulnerable populations such as children.
The Trial and Its Implications
The courtroom drama, likened to landmark lawsuits against tobacco firms in the 1990s, has seen lawyer Mark Lanier assert that the companies have “addicted the brains of children”. He argues that the very design of social media platforms is engineered to create dependency. In sharp contrast, Meta maintains that its mission is to cultivate a “safer, healthier experience” for users. This tension highlights a broader industry dilemma: Are these platforms facilitating meaningful engagement, or are they merely fostering compulsive behaviour?
The Mechanics of Social Media Engagement
Infinite Scrolling: A Never-Ending Loop
The concept of infinite scrolling has transformed the user experience on social media. Once, feeds came to an end; now, they are designed to keep users engaged indefinitely. Arturo Béjar, a former child safety advocate at Meta, explained that this design creates an endless loop of dopamine-inducing content. “The promise is that there is always something interesting and rewarding,” he noted, indicating a cycle that encourages users to chase after the next hit of satisfaction.

Internal communications from Meta revealed that even employees were concerned about rising “reward tolerance” among users. An email chain from 2020 illustrates this, with one employee jokingly referring to Instagram as a drug, while another acknowledged the addictive nature of social media generally. Béjar emphasised, “You are constantly chasing, and even when you find what you are after, there is always something else demanding your attention.”
Autoplay Videos: Engagement at a Cost
Autoplay functionality, prevalent across platforms from Netflix to Instagram, has been a point of contention. Béjar recalled that while users initially disliked autoplay for its disruptive nature, it ultimately led to increased video consumption, pleasing advertisers at the expense of user satisfaction. He likened the experience to being served endless tortilla chips at a restaurant—initially enjoyable but ultimately overwhelming.
This feature triggers a deep-rooted human instinct to understand the content being presented, compelling users to watch more than they originally intended. The implications of such design choices extend beyond mere engagement metrics; they raise ethical questions about user autonomy.
The Role of Notifications and Likes
The Compulsion to Compete
Notifications and likes are integral to the social media ecosystem, particularly for younger users. Professor Mark Griffith from Nottingham Trent University explained that the drive to accumulate likes can create a rewarding cycle, producing endorphins akin to those generated by traditional addictive substances. While he acknowledged that for some, social media use can resemble addiction, he differentiated between habitual and problematic use, suggesting that the majority do not meet the clinical criteria for addiction.
Adam Mosseri’s defence during the trial was clear: while social media can provoke strong emotional responses akin to those felt when binge-watching a favourite show, it should not be classified as a clinically addictive substance. This distinction is crucial, particularly as the jury deliberates the finer points of tech companies’ responsibilities.
The Verdict and Its Potential Impact
As jurors began their deliberations, the implications of their verdict loom large over the tech industry. A ruling against Meta and Google could redefine the legal responsibilities of social media platforms regarding their design and user engagement strategies. It could set a precedent for how these companies approach user safety and ethical design in the future.

Why it Matters
This trial is not just a legal battle; it reflects a larger societal concern about the psychological impact of social media on users, especially children. As these platforms continue to dominate our daily lives, understanding the balance between engagement and ethical responsibility is crucial. The outcome could lead to significant changes in how technology companies design their products, potentially steering them towards a more user-centric approach that prioritises mental health over profit margins. In a world where social media is omnipresent, the need for accountability has never been more pressing.