Well that's basically what we did. http://en.wikipedia.org/wiki/Arecibo_message http://en.wikipedia.org/wiki/Arecibo_message Sure if you could have great cert

Well that's basically what we did. http://en.wikipedia.org/wiki/Arecibo_message http://en.wikipedia.org/wiki/Arecibo_message Sure if you could have great certainty there was someone on the other side of your transmission then logically I think you are correct, but they might just be swinging for the fences like us.