Well, that's more complicated, but just as simple. I think that they were ghosts. Which leaves me stuck with two options:
- I didn't see anything.
- Ghosts exist, because I saw one.
However, I don't think that either of these particular options are satisfactory. Clearly, I saw something: point one is refuted; however, just because I saw it doesn't make it any more likely to be real than if thirty thousand people saw it: point two is refuted.
Simply put, seeing is not necessarily believing. Just because I can see the Virgin Mary in a grilled cheese sandwich
doesn't mean she's actually hanging out there in all her cheezy glory. Why would she be there? What sense does that make in the cosmos? If it doesn't make sense, then does she really reside in her cheesy-wunderbready-world?
The fact of the matter is, if ghosts exist, then they exist outside the cosmos: their presence is not part of an ordered universe (in the ordered universe, ancestors exist and take part in the reciprocal relationship we have with them; they don't hang out and scare the shit out of people), nor is it part of the natural way the world is supposed to work (if ghosts hang out, it's due to something entirely unnatural, such as violence or a death that comes earlier than it should).
The only people who might have truck with ghosts are magicians, and you know what a slimy lot they
(On a side note, you're about to find out just how sleezy those magicians are: this has inspired a new post. . .)