Just as the title suggests, what are some of the greatest feats you've seen in fiction? It can be in anime, manga, American television and comics, anywhere. Post them down below, I'm intrigued to see them. The Flash once outran Death by running for so long that the universe crumbled around him, meaning that nothing was technically alive so Death could no longer exist. He probably would have have to have ran for like 50 billion years at near-light speeds for that to work.