20
MOODY v. NETCHOICE, LLC
Opinion of the Court
just described. Those principles have served the Nation
well over many years, even as one communications method
has given way to another. And they have much to say about
the laws at issue here. These cases, to be sure, are at an
early stage; the record is incomplete even as to the major
social-media platforms’ main feeds, much less the other applications that must now be considered. See supra, at 12.
But in reviewing the District Court’s preliminary injunction, the Fifth Circuit got its likelihood-of-success finding
wrong. Texas is not likely to succeed in enforcing its law
against the platforms’ application of their content-moderation
policies to the feeds that were the focus of the proceedings
below. And that is because of the core teaching elaborated
in the above-summarized decisions: The government may
not, in supposed pursuit of better expressive balance, alter
a private speaker’s own editorial choices about the mix of
speech it wants to convey.
Most readers are likely familiar with Facebook’s News
Feed or YouTube’s homepage; assuming so, feel free to skip
this paragraph (and maybe a couple more). For the uninitiated, though, each of those feeds presents a user with a
continually updating stream of other users’ posts. For Facebook’s News Feed, any user may upload a message,
whether verbal or visual, with content running the gamut
from “vacation pictures from friends” to “articles from local
or national news outlets.” App. in No. 22–555, at 139a. And
whenever a user signs on, Facebook delivers a personalized
collection of those stories. Similarly for YouTube. Its users
upload all manner of videos. And any person opening the
website or mobile app receives an individualized list of
video recommendations.
The key to the scheme is prioritization of content,
achieved through the use of algorithms. Of the billions of
posts or videos (plus advertisements) that could wind up on
a user’s customized feed or recommendations list, only the
tiniest fraction do. The selection and ranking is most often