UFOs, Aliens, Area 51, and arguments from Ignorance
Let's begin with stating some answers/questions. The first is whether or not there is life in the universe aside from Earth life? We would have to honestly answer: probably. I can recall some finds on meteorites that seemed to have fossilized single cell organisms on them, but I do not remember if those finds were confirmed or validated. However, it seems unlikely given the scope of the Cosmos, with a materialistic outlook, that this planet is the only place with life in or on it. The next question should be obvious: is there intelligent life in the universe other than on this planet. Again, probably. The answer is the same for the same reasoning. Without adopting both a unique and privileged place in the universe it would be impossible to rule out the possibility that there are other intelligent life forms somewhere in the great sky of the universe. The last question: has intelligent life visited this planet? This answer is more distinct: extremely doubtful. There are a number...