A bipartisan coalition of 29 states began presenting its federal case against Meta this week, alleging that Facebook and Instagram were intentionally designed in ways that encouraged compulsive use by children while the company misrepresented safety risks and improperly collected minors' data. Four lead states are seeking consumer-protection remedies that could include changes to likes, infinite scrolling and time limits, while Meta has said the states' penalty theory could expose it to as much as $1.4 trillion, even as state lawyers have discussed figures closer to $200 billion, according to Reuters.

The size of those numbers makes them easy to mistake for the central issue. They are not. No $1.4 trillion judgment has been entered, and Meta has not been found liable in this case.

The more consequential question is whether courts can treat specific social-media design choices as unlawful consumer practices when they are used by children, potentially creating a legal framework that reaches beyond one company.

The states must prove more than that some adolescents use social media too much

California, Colorado, Kentucky and New Jersey are leading state consumer-protection claims, while all 29 states are pursuing federal allegations involving children's personal data.

Their case centers on design features intended to encourage repeated engagement: recommendation systems, likes, notifications and infinite scrolling. California Deputy Attorney General Megan O'Neill argued that Meta's advertising-supported business model gives the company a financial incentive to keep users engaged for longer periods, according to Reuters.

Meta denies designing its platforms to addict children and disputes claims that available research establishes a direct causal link between social-media use and broad declines in adolescent well-being.

That scientific distinction matters legally.

Finding that heavy social-media use is associated with anxiety or depression does not automatically prove that Instagram or Facebook caused those conditions. Adolescents already experiencing depression may use online platforms differently; platform use could aggravate difficulties for some users; both processes could occur simultaneously.

The states therefore need evidence about Meta's conduct and representations, not simply evidence that youth mental-health problems exist.

Privacy claims give the litigation a separate pathway

The case is broader than arguments about psychological harm. All 29 states allege that Meta violated federal rules governing children's personal information.

That creates two different evidentiary questions.

One asks whether Meta misled users or engaged in unlawful practices through the way it designed and described Facebook and Instagram. The other asks whether information belonging to children was collected or handled in violation of federal requirements.

A government does not necessarily need to prove that a child developed depression in order to prove that information was unlawfully collected.

Likewise, evidence that some adolescents experienced harmful outcomes does not by itself establish a privacy violation.

The distinction helps explain why the states fought to present a coordinated case even though their individual consumer-protection laws differ. A unified proceeding allows them to present common evidence about Meta's conduct while the court applies different legal theories, Reuters reported.

An eight-person jury will advise a judge who retains the final decision

The trial has another unusual feature: the jury's verdict will be advisory.

Five women and three men will hear the evidence and offer findings, but U.S. District Judge Yvonne Gonzalez Rogers will ultimately determine liability. Meta initially sought a jury trial before later arguing for a bench proceeding; Rogers chose the advisory structure in part to incorporate community judgment into a case involving millions of users, according to Reuters.

If the states prevail, the remedies could extend beyond money.

Proposed changes have included stronger age restrictions, time limitations and modifications to engagement features. Similar litigation in New Mexico has already produced substantial monetary awards and court-ordered restrictions affecting Meta's treatment of minors, although Meta is appealing that outcome.

A federal ruling affecting multiple states could therefore influence how social platforms design products nationally even if an order technically applies to particular claims or jurisdictions.

Technology companies often prefer a uniform product to maintaining substantially different versions for individual states.

$1.4 trillion describes theoretical exposure, not an expected judgment

Meta has repeatedly emphasized a potential $1.4 trillion penalty, a figure derived by multiplying statutory penalties across the number of alleged violations and affected users. Earlier court filings showed the states pursuing theories capable of generating extraordinarily large sums, Reuters reported.

The number should be understood carefully.

Statutory consumer-protection laws frequently authorize penalties per violation. When allegations involve millions of users or repeated conduct, multiplying the maximum penalty can generate a theoretical figure far larger than courts ultimately award.

State lawyers have indicated potential penalties nearer $200 billion. Even that would rank among the largest corporate sanctions ever imposed.

Neither number is presently a judgment.

Before damages become relevant, the states must establish liability, and Meta will have opportunities to challenge adverse findings and appeal.

The trial can decide what Meta did without resolving what social media does to every child

The litigation arrives amid a much wider debate over adolescent technology use.

More than a thousand school districts and thousands of individual plaintiffs have brought related claims against social-media companies, while Google, Snap, TikTok parent ByteDance and others face separate litigation, according to Reuters.

No single trial can settle the scientific question for every platform, age group and pattern of use.

A teenager exchanging messages with close friends is not having the same experience as a younger user spending hours consuming algorithmically recommended content. Benefits such as social connection and access to information can coexist with risks involving compulsive behavior, harassment, sexual exploitation and harmful content.

The court's task is more specific.

It must decide whether Meta's actual conduct violated actual laws.

If the states prove that case, the long-term significance may not be the eventual dollar figure. It may be a judicial determination that product design itself can create consumer-protection liability when technology companies know that children are among the users being encouraged to remain engaged.