Well of course Shakespeare got it wrong with ‘There are more things in heaven and earth, Horatio, than are dreamt of in your philosophy.’. At least, that's seems to be the acceptably prevalent view.
That was Hamlet, wanting to believe in ghosts, so that his dead dad could reveal that he'd been poisoned in the ear, for the purpose of the plot. So yeah, in the original context it was some paranormal investigator or Scooby Doo level of crap. But subsequently people have picked it up and made it deep and meaningful due to having been wrote by The Bard. Even so, what do we want it to mean? That just about anything could maybe be discovered one day, therefore we can imagine arbitrary things right now and say they're real? Doesn't follow.