What if it was possible, what could we do with it. If everything happens for a reason would changing one small thing in the past destroy the future? You know maybe we should not mess with it. Just thinking about all the different possibilities makes my head hurt. So, I don't think I am going to dwell on this subject for much longer other then to say time travel is bad and gives me a headache. Good for movies and books. Bad for us in real life.