This is an interesting speculation considering we have explored more of space than our very own ocean. I also find it intriguing how most oceanic tragedies, like the Titanic, are only theories because the ocean is so vast and treacherous for there to have been any witnesses. Folklore and mythology speaks prevalently of oceanic monsters, as well as UFO's. Now that aliens have been confirmed by NASA, I believe fiction may be more non-fiction than we are willing to let on