Asking real questions and thinking for himself

The question discussed in this video is exactly what I have been asking myself for years, and unable to find out how to even start thinking about it. It's really helpful to hear a professor's perspective. From Professor Kershnar's way of talking I can feel that he is a guy that dares to ask real questions and think for himself. It's a pity that this kind of genuine discussion gets taken down while senseless bs flood all the media.