On Friday, the Supreme Court unanimously upheld a federal law that effectively bans the social media app TikTok in the United States, unless the platform’s China-based owner sells TikTok. Though Justices Sonia Sotomayor and Neil Gorsuch disagreed somewhat with the unsigned majority opinion’s rationale, no justice dissented.

It’s also worth noting that all three of the lower court judges who heard this case, known as TikTok v. Garland, agreed that the law should be upheld. That means that no judge has determined that the law is unconstitutional.

Despite that, it’s uncertain what the decision means longterm for TikTok and its users. Congress passed a law banning the app that the Supreme Court has now upheld, but it’s not clear whether the government will actually enforce it, which prohibits US companies — including Apple and Google, which make the TikTok app available on their app stores — from providing services to TikTok.

The law takes effect on Sunday, one day before President Joe Biden leaves office. Biden has said that he will not enforce the ban in his final day as president, and it would be unrealistic anyway to expect the federal government to........

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