However, in controlling the flow of information, a number of devices can be employed to realign the narrative. An obvious example is flashback, where the narrative allows a character to remember events that that have happened in the past, usually to shed light on events 'currently' taking place within the narrative. Similarly, a complex narrative may allow events taking place in two different locations at the same time to be shown alongside each other. This is called parallel action and provides the audience with a privileged view. An extreme form of this is the use of split-screen techniques where two narratives can literally be shown simultaneously on screen.