I think the idea that we can be alone on this infinite universe is terryfing, only imagine, we are in a tiny piece of earth floating away in this unknown universe, we just have a few hundredth of second in this story.
For me the possiblility that we can't be alone is comforting , but if something is out there... why dont we know about them, why dont we have any consistent proof about their existence after all of these years.
Maybe we are more advanced than they are( always thinking that they really exist)I wonder if someday we are going to meet them, or maybe we actually do it that is something we never know , unless their want.