My wife and I were having a discussion about Physiscs Forums and my participation in it. She said that she knows what she thinks and doesn't care what anyone else thinks or care to let them know what she thinks. She couldn't understand why I and all of us realy like the forums so much. I tried to explain that it is interesting to find how or what others think about something or to see if our ideas and thoughts make sense to anyone else. She doesn't understand that and claims its just ego and showing off. I really couldn't explain why I'm so hooked on PF. I know that I have learned a lot and it has helped tremendously clairify my own thinking. I really do enjoy reading others thoughts or slants on a subject I'm interested in a well as airing my own thoughts. But, I really can't say just why. Is it just ego or is it the love of a good argment/discussion? Any thoughts? Why do you enjoy participating in the Physics Forms?