A person named “John Titor” started posting on the Internet one day, claiming to be from the future and predicting the end of the world. Then he suddenly disappeared, never to be heard from again. […]
He claimed he was a soldier sent from 2036, the year the computer virus wiped the world. […]
Titor responded to every question other posters had, describing future events in poetically-phrased ways, always submitted with a general disclaimer that alternate realities do exist, so his reality may not be our own.