I do believe in intelligent life outside of our system, perhaps even it has noticed us (and perhaps we it) but sadly I feel we will never know if it's true simply because of one simple fact Humans instinctively hate what they do not understand If we are still in arms about an evolutionary pigment change and the cultural mannerisms that accompany it, then I doubt we will be making "contact" any time soon (and by contact I mean on a worldwide, public scale)