Every story has a beginning, middle, and end. In the most elementary sense, this particular advice given to writers is meant for the purpose of providing structure, teaching them how to keep track of their creations as they are being created, maintaining a sense of pacing and awareness of the important events that further drive the created story. Traditionally, this entails that the story is most easily written and/or presented in chronological order. While this may be true in most cases, there is a point to be made for presenting things out of order.
