Studying the world's oldest writing for the first time compels you to wonder about what writing is and how it came about more than five thousand years ago and what the world might have looked like without it. Writing as I would define it serves to record language by means of an agreed set of symbols that enable a message to be played back like a wax cylinder recording. The reader's eye runs over the signs and tells the brain how each is pronounced and the inner message springs into life.