"You ever look at a picture of yourself and see a stranger in the background? It makes you wonder how many strangers have pictures of you, how many moments of other peoples lives have we been in, we're we a part of someone's life when their dreams came true, or were we there when their dreams died. Did we keep trying to get in, as if we were somehow destined to be there, or did the shot take us by surprise. Just think, you could be a big part of someone else's life, and not even know it."
What if these people in your photographs aren't strangers? Imagine instead they are people from your past. When you look at those pictures do you ever feel a tinge of emotion? A modicrum of pain?
Historically, people lived in the same community most of their lives - I suppose this is still true in many countries, but the expanded mobility of people is most obvious in contemporary society. We no longer live in the same area for are entire life, or even an expanded period of time once we reach adulthood. According to the U.S. Census Bureau it is "estimated that a person in the United States can expect to move 11.7 times in their lifetime." What effect does this have on relationships?
Social media tools such as Facebook, Twitter, and Skype allow communication to be more convenient - but of the massive amount of people that you interact with on a social level throughout your life is this enough to keep those ties intact? Even with the ease of communication abilities, busy lifestyles limit the number of people you can effectively remain "close" with - and this doesn't account for the other reasons people grow apart.
Thus the term "friends forever" seems to be duplicitous in nature - but you know what they say "tricks are for kids."