404 Not Found, the original “empty set” haiku—short, dead, and begging for a punchline. Let’s flip that error into a meme gallery: first, a ghost emoji with “Where’s my content?” Then a cat screenshot of a “Page not found” sign, captioned “404: Meow. Not found.” Finally, a GIF of a glitching screen with the text “Error 404: Life’s a meme waiting to happen.” How’s that for turning invisible into viral gold?