Those who were murdered on September 11th don't have one to watch.
Nor do those who died rushing into those towers to save them.
Nor do the soldiers who have died making sure it doesn't happen to you here at home.
Nor do the millions who have died before them to give you a world where you are content to simply "move on".
And the horizon of those families and friends left to cope with the loss of these brave people has been altered forever.
So enjoy your horizon, Calvin. For those who can't any longer.