About life and friends
Friends are not always there, if they were they wouldn't be friends, they would be like pieces of furniture or something static with no own life. They cannot always be there, because what friends do is to go out and live their lives, to go and come, to travel and to comeback or not, but still friends. All this knowledge they collect not being there but living their lives become in pretty accurate answers that naturally pump up when one is full of questions.