The way I personally work is I like to write what I know, what I feel, and also where I am.
You know when I really realized like 'wow' what a gift this is was when I sang at camp and a girl wrote me a letter and said the song that I sung kept her from committing suicide.
And the reason for focusing on that time frame is that it's going to take us a considerable period of time to develop the new capabilities, processes and organizations that will be needed.