"Sometimes I think the surest sign that intelligent life exists elsewhere in the universe is that none of it has tried to contact us"

This quote by Bill Watterson suggests that the absence of contact from intelligent life in deep space is a sign that it exists. It indicates that if intelligent life did exist, it would have made contact with us by now. This might be interpreted as a sign that smart life is either too far to make contact, or that it understands us and is picking not to make contact. It might also be translated as an indication that smart life is not as advanced as we are, and is not yet efficient in making contact. Whatever the factor, the lack of contact from intelligent life in deep space is a sign that it exists. Watterson's quote is a reminder that we are not alone in deep space, which there is still much to check out and find.