Threads, Meta's text-based social media app, is testing a new feature where you can set your posts to disappear after 24 hours.
It's like a timer on your posts, and after it's up, they vanish along with any replies they got.
This idea was inspired by Twitter's Fleets, which didn't last very long, but Threads hopes this feature will be more popular.
This shows Threads is always looking for new ways to make things interesting and give users more control over their content.