A 2017 Meta memo warned Instagram features clashed with teen well-being. Tennessee just turned it into trial evidence.

Tennessee's opening statement to a Nashville jury on Monday centered on a 2017 internal Meta product memo in which the company's own staff wrote that features like notifications and infinite scroll "are inherently at odds with well-being." Counsel Tom Cartmell walked jurors through the document, played the dinging sound an Instagram notification makes on a phone, and told them the warning the memo called for "never came."

The seven-week civil trial, Tennessee v. Meta, opens the first courtroom test of the state's argument that Meta's own pre-harm product memos can establish knowledge that its Instagram design choices harmed teens. Tennessee Attorney General Jonathan Skrmetti's office filed the suit in 2024 and later published an unredacted complaint laying out the factual record the state intends to build. If the jury finds liability, a second phase before Chancellor Russell Perkins will weigh financial penalties and court-ordered changes to Instagram itself. Autoplay, notifications, and infinite scroll are the remedy targets the state has named.

The state's theory is a courtroom mechanic, not a moral verdict. Cartmell argued that Meta's own researchers repeatedly flagged compulsive teen use linked to eating disorders, depression, and self-harm, and that the company kept the features because they maximized time-on-platform and ad views. Variable-reward mechanics like an unpredictable notification sound, he said, hit adolescent brains with outsized dopamine impact. The 2017 memo, written by Meta product managers, is the state's exhibit for the proposition that the company knew the design tension existed before the harm period in question.

Meta's counsel Kevin Huff countered that the same documents show a company that is searching for and fixing problems, has built tools to limit problematic teen use, and has been transparent about the risks. Both opening statements were carried live on Courtroom View Network, and Reuters' wire was picked up independently by The Guardian, France 24, The Hindu, Yahoo News, and GV Wire.

The procedural mechanic is what separates this trial from a press release. In a state civil case, an internal product memo shown to a jury is not a public statement; it is evidence offered to prove a specific proposition the lawyers must name out loud. Cartmell is offering the 2017 memo to prove Meta had pre-harm knowledge that its design choices conflicted with teen well-being. If jurors accept that proposition, the same knowledge finding becomes the foundation for the second-phase remedies hearing. A state court cannot on its own force Meta to redesign a product, but a liability finding followed by an injunction can shape how autoplay, notifications, and infinite scroll work for Tennessee users.

The seven-week evidentiary phase now runs before a Davidson County jury. Witnesses, depositions, and additional internal documents will fill out the record behind the 2017 memo. Chancellor Perkins' remedies phase, if it happens, will turn on what that record shows Meta knew, when it knew it, and what product changes are within the court's power to order. The dinging notification sound that opened the trial is now a piece of public evidence the jury will carry into deliberations.