> What does the possible variation in life forms have to do with the nature of communications mediums or techniques? Lots of stuff apparently. What if a speci

> What does the possible variation in life forms have to do with the nature of communications mediums or techniques? Lots of stuff apparently. What if a species communicates using pheromones and checks for specific smells similar to their own as in this strip http://xkcd.com/638/ http://xkcd.com/638/ What if there are creatures that live millennia and take days to form cohesive words. What if the creatures are able to use physics that is unknown to us or that we can't detect?