2 MOODY v. NETCHOICE, LLC ALITO, J., concurring in judgment need and no good reason to decide anything other than the facial unconstitutionality question actually before us. After all, we do not know how the platforms “moderate” their users’ content, much less whether they do so in an inherently expressive way under the First Amendment. Nevertheless, the majority is undeterred. It inexplicably singles out a few provisions and a couple of platforms for special treatment. And it unreflectively assumes the truth of NetChoice’s unsupported assertion that social-media platforms—which use secret algorithms to review and moderate an almost unimaginable quantity of data today—are just as expressive as the newspaper editors who marked up typescripts in blue pencil 50 years ago. These as-applied issues are important, and we may have to decide them before too long. But these cases do not provide the proper occasion to do so. For these reasons, I am therefore compelled to provide a more complete discussion of those matters than is customary in an opinion that concurs only in the judgment. I As the Court has recognized, social-media platforms have become the “modern public square.” Packingham v. North Carolina, 582 U. S. 98, 107 (2017). In just a few years, they have transformed the way in which millions of Americans communicate with family and friends, perform daily chores, conduct business, and learn about and comment on current events. The vast majority of Americans use social media,1 and the average person spends more than two hours a day on various platforms.2 Young people now turn primarily to —————— 1 J. Gottfried, Pew Research Center, Americans’ Social Media Use 3 (2024). As platforms incorporate new features and technology, the number of Americans who use social media is expected to grow. S. Dixon, Statista, Social Media Users in the United States 2020–2029 (Jan. 30, 2024), https://www.statista.com/statistics/278409/number-ofsocial-network-users-in-the-united-states. 2 V. Filak, Exploring Mass Communication: Connecting With the

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