What do you guys think of UFO's?

[eliasfrost]

This is the problem with your theory. It makes a lot of unfounded
assumptions that can much more easily be attributed to simpler
explanations.(E.g., there are no aliens)

I found it ironic that you just said those two things in the same sentence.

Another thing, we are made of a combination of the most common substances (carbon, oxygen and hydrogen) in the universe (as far as we know, mind you). I find it extremely hard to believe that there would be no other form of life outside earth, even if it is simple - but that's not for me to judge.