He was a writer. He thought he wrote about the future, but it really was the past. In his novel, a mysterious train left for 2046 every once in a while. Everyone who went there had the same intention -- to recapture lost memories. It was said that in 2046, nothing ever changed. Nobody knew for sure whether it was true, because nobody who went there had ever come back -- except for one. He was there. He chose to leave. He wanted to change.