Whenever i see photos of rooms etc which other kids say are ghosts, i just see a large, only just noticable smear. I know ghosts can exist but not in the way most say. Perhaps electrical energy transferred from our thoughts and mind and either projected out or giving us images that we can see but arent there. It could explain a lot. Any picture i see invloves a white patch far away, a cloud or little white sparks. Others are so sensitive to them. Surely, we must find reasonable explanations before saying it's something we don't know. First we must sort fake(drawn on photos etc) from real as best as we can. Second, we must find an explanation using simple methods)ie string Then we must use more scientific ideas for it(electricity etc) THEN we can go on to test the theory of ghosts and other stuff> it would involve us thinking what are the boundaries of science. Ancient Greeks if known it, couldnt have explained electricity and would have been like explaining ghosts. But electricity comes under science. If we explain paranormal activity, it will become a topic in science! Hallelujah!