There’s a series on the Sci-Fi channel called Ghost Hunters. All those involved in this program are already convinced that ghosts exist, and are simply trying to prove this fact to everyone else. They run around dark hallways and generaly creepy places using night vision, which adds to the creepiness. Apparently ghosts are afraid of the light, or they just don’t want to be seen. Not sure why they would care. Shh.. did you here that? I saw something over there. Cold spot cold spot right here...

In the coming decades and certainly by the end of this century machines will be capable of doing almost any job humans can, and many they can’t. They’ll work 24/7 without pay; they won’t require businesses to observe safety regulations or any of the trappings that come with human employees. Since they will be quite capable of repairing themselves and each other, maintenance will be just the cost of raw materials, which will be mined, refined and made into parts by other machines. These machin...