When I was 13 my family and I moved out of our house because it got too difficult to live in it.
Objects would fly out of closets and crash against walls. Hanging light fixtures would begin to swing, sometimes violently, all on their own. Curtains and blinds would open and close, sometimes slowly, sometimes with sudden force. Tables shook and moved. Horrible sounds would come from the middle of the house in the dead of night. It was frightening.
My sister said it was proof of evil spirits and ghosts of the dead, and therefore she believes to this day that wicked and inhuman spirits caused the events we all witnessed growing up.
What does this have to do with the subject. A lot.
While I have to admit that most people who hear of such things will say that I lived in a haunted house, and speaking conventionally I can't come up for a different set of words for it, yet just because these things happened (and yes, just because it more than often frightened all us, parents included), I can't say that what we witnessed was evidence or proof of anything.
Mind you, I'm a theist. I believe in God and spirits, etc. But just because we experienced a series of inexplicable phenomenon in a house we grew up doesn't mean that such was proof positive of ghosts, spirits, the supernatural, demons, life after death, etc. All I can say is we went through some pretty scary days and nights living there and left because we could not deal with what it was like. Who knows what caused it?
Just because you can't explain something or most people would come to a certain conclusion does not mean you have proof positive for such-and-such. Sure it could have been ghosts or spirits (if such exist) but just because a rocking chair moves back and forth on its own while you hear disembodied laughter doesn't mean you have a ghost or spirit behind it. You only have have evidence that when you see something like that, it scares you.
Just because you see a UFO doesn't mean you have proof positive that alien life exists. It is only proof that you saw an object flying that you can't identify.
Even though I believe in God, I don't think there is empirical evidence for God. The Jewish view of God is that God is transcendent, which means God can't be measured, poked, tested, etc. A God you could sample and manipulate, even parts of, to test and have mortals define as fitting their definition of a deity isn't much of a God, in my humble opinion.
Maybe a scientist or two is on to something, but maybe, like so many others, being so desperate to prove their own convictions right they are anxious to make conclusions that may not really be there under disinterested re-testing.
Again, I'm a theist. I'm not so convinced by this or other claims of empirical evidence of God.
Not everything that goes bump in the night is a ghost. Just because it scares you and just because you can't find any other explanation that fits what you think it must be doesn't mean your dead Uncle Carl is trying to play Ouija with you.
