Sequence

From Wikipedia

For April Fools' Day 2019, a social experiment subreddit called r/sequence was released. The experiment consisted of a community-driven sequencer that users interacted with by submitting GIFs or text slides to be compiled into a movie. The order of the GIFs and text slides were chosen by users through upvoting one GIF or text slide per scene. The most upvoted GIF or text slide was locked into the next available scene for every three minutes. At the end, once the entire sequence was filled, it was posted as a full story in an external page. The experiment ended at April 3, 2019, 11:08 PM GMT.