[CaptainCrunch]

Nah Ozy, I certainly don't think your nuts at all. It would be arrogant foolishness to believe that in a universe or even a galaxy such as ours that life doesn't exist elsewhere, and that it could possibly be far more advanced or older then our race.

I also believe that there's a possibility that we've been visited.

However, I am a skeptic at heart.

Even with the ability to track and listen to radio waves for example. By the time a "TV" broad cast left our planet and traveled to another civilization, that civilization, might have been born, evolved and died out. Its a pretty safe bet that there isn't advanced life in our "neighbourhood", so now we get into distance problems.

If I likened our universe to a bag full of marbles lets say the size of the North American continent. And then I released those marbles into a room the size of our solar system, the possibility of finding the one marble that I've painted with a green dot become the work on not life times, but mega generations. Math alone makes me believe that even if we were visited, it would have been a fluke visitation, and because of the vastness of the known galaxy or even the universe the chances of that happening are remote.

As well, life is unique. How do we even know that an intelligent life form would even recognize our radio transmissions as a sign of intelligence. And lets say that they arrive here, would they even recognize us as falling into their definition of life. For all they know, they might even see and sense in an entirely different way then us, so we might have had aliens show up here, and they wouldn't recognize us, and we might not be able to recognize them.

Beyond that, what would be the reason for multiple visits to our planet? If they're that advanced, would we even hold interest to them, or would we be like an ant farm, that they looked at for a while and then threw under their bed.

Would we be worth conquering for example, maybe the resources and metals are completely different from theirs. We talk about the requirement of water for life, but that's our definition of life, it might not be theirs so maybe they don't need water.

Like I said, I'm not discounting life out there, I'm discounting the commonality of life, and the size and scope of finding a advanced civilization, and then even if it is there, is it so far out of the realm of what we define as life that we might not even see it.