Warnings as regulatory shortcut

States can try to regulate platform design by forcing broad, mandated health warnings claiming features 'cause addiction.' Those mandated claims risk First Amendment reversal, create massive scope ambiguity (news sites, email clients, recipe apps), and function as a cheaper regulatory lever that governments can wield without resolving disputed science. — If courts strike such laws down it will establish important constitutional limits on compelled speech and define how far subnational governments may try to police interface design and platform architecture.