Not that anyone should need it, but here’s another reminder not to immediately trust the evidence of your eyes and ears.
Nothing in this video is real. Nothing. Everything you see and hear is computer generated.
I don’t know who made the video (edited to add: I do now. It comes from here), but if you ever wanted to produce a fake haunting this is the person to see. I'll bet it was done on a computer like the one you’re using now.
The more real computer-generated images become, the more difficult it is to present video or photographic evidence for supernatural events.
That’s one reason why I still use film cameras more than digital. Film is more difficult to ‘doctor’ to produce a fake. Digital is useful, especially in view of the fact that you can take a hundred photos and find nothing. If they’re digital, at least it hasn’t cost anything.
I still believe, though, that if we are going to produce proof, digital isn’t the best way to go.
It’s just too easy to manipulate, which means it’s easy to be accused of manipulation even when the photo is real.