I really don't know if this is the right forum to ask this but let me try.. Why everybody tends to think of life as something organic in composition ? For example, NASA sends the mars rovers in search of water which is essential for an organic life form. If the simple definition for a life form is.. 1)Can Grow 2)Will Respond to stimuli 3)Can Reproduce then we don't neccesarily have to equate life to a organism made of carbon and hydrogen. Why don't we think of a possibility of a life form that exist in some distant part of our galaxy that isn't made of organic material. It could be even matterless being entirely a form of energy that shows the characteristics of life and doesn't have to be visible. I know this idea is bizarre...but I tend to think why not?