[goldwine]

Great posts guys! I some think Sci-Fi stands alone because it is merely the extension of reality..eg. if they are predictions of future technology etc. I think the line between fantasy and sci-fi blur when the work goes beyond that to created worlds, peoples etc. far beyond reasonable and factual forecasting. I think that this is why some sci-fi appeals those who would normally prefer works of fantasy. Tolkien's works take this to the next level again (as said above) to a completely created world, creatures, languages, mythology, history etc. etc. It is a further stretch of the imagination, one which some more fact oriented people, are unable to brigde.