We are but one tiny planet on one tiny sun in a galaxy of 100 billion stars. We estimate that there are at least 100 billion other galaxies visible to us in the universe. 100 billion x 100 billion is a bloody lot of stars (of course I'm generalising, the actual figure is probably orders of magnitude higher). Given this evidence, I find it highly unlikely that we would be the only bastion of life in the universe. Quite the contrary, I am confident the universe is teeming with life.
Now... why is it that laymen seem to think this means that I believe in UFOs? To my way of thinking, the idea that we, on this tiny speck of a world, would be visited by advanced extraterrestrial life, presumably for no purpose more nefarious than to watch our television and cuddle up to our politicians, is ludicrous.
This may not warrant being a topic, but I'm just curious if anyone else has encountered this anomaly, and/or how you would respond to it. My standard response is that, short of some sort of warp-drive technology, the distances are simply too great to travel. To go one step further, even
with some form of FTL travel, the immensity of our galaxy alone would make visitation astronomically (literally) unlikely.