OK - this concept has been rolling around in my head for several years now. It's time to throw it out to you smart people to see what you come up with. How can you prove that what I see as blue is the same color that you see? Isn't it possible that the color I identify as blue and the color that you identify as blue are completely different colors? We all call the sky blue, but it might appear to you as the color I see as red, we both call it blue because that's what we were taught to call that particular color. This is a hard concept to explain, so I apologize if I did a poor job. Anyway, any thoughts? Lary ------------------ Want to help the HTF find ET? Click here! Learn more here .