I think this song is about people who are empty emotionally and don't come to terms with themselves, just live their lives day by day ignoring the world around them until the truth comes to face them - e.g The Twin Towers falling down, a realisation of what was once believed to be truth which evidently turned out to be false and still people believe it was a terror attack perpetrated by terrorists when it was done by their own people so 'God knows what makes the comparison'
I think this song is about people who are empty emotionally and don't come to terms with themselves, just live their lives day by day ignoring the world around them until the truth comes to face them - e.g The Twin Towers falling down, a realisation of what was once believed to be truth which evidently turned out to be false and still people believe it was a terror attack perpetrated by terrorists when it was done by their own people so 'God knows what makes the comparison'