Welcome to Gaia! ::

Yes, I believe in ghosts. I never really seen one but I still believe they exist.

But I have experienced a few times where there might have been a ghost or spirit. Where an object moved on it's own (lol, I'm typing this at night and I'm already getting nervous just remembering those times). And maybe heard a few whispers and seen a few shadows. But I try not to investigate the situation of when that happens. Because I'm afraid that I might disturb them, bother them, or just annoy them.

Also I think if you were ever to see one, you should remain calm and not let it scare you. Because it might take advantage and find scaring you fun and try to scare or disturb you more. Or if the ghost or spirit is nice, you might sadden it if your afraid.

And I agree a little with RagtagFlyboy in the beginning but not the law of conservation of energy, for I haven't studied that yet.