[Jessica.]

omg I watched a really good Anime about time travel and such called Steins;Gate and John Titor was one of the characters, they posted on message boards and all in it and you eventually find out who John Titor is and all, I honestly didn't know that he was an actual real life person. I thought they just invented him for the story.

Edit: Oh it mentions it on wikipedia.

The 2009 Japanese visual novel, novel, manga, and anime series, Steins;Gate makes heavy use of the legend of John Titor, the IBM 5100, the fictional organization SERN (based on the real organization CERN), and a character using Titor's name as a pseudonym.