Final answer:
Foreshadowing is a literary technique used to hint at future plot developments, often used to build suspense in a narrative. It appears in various forms of literature, such as in 'Antigone' where Tiresias warns Creon, hinting at a tragic future. The technique is also used in narratives to suggest future importance, like the 'fearful man' in the text from LibreTexts™.
Step-by-step explanation:
Foreshadowing is a literary device that authors use to give hints or clues about events that will occur later in the story. It is employed to build anticipation and create suspense, making readers eager to find out how the story unfolds. For instance, the excerpt mentions Ken Burns's use of foreshadowing in his documentaries, stating that his narrators often drop hints just after an emotional peak, indicating that a major change or revelation is imminent. Similarly, in literature, a classic example would be in Antigone, where the character Tiresias warns Creon of the dire consequences his family will face, which serves as a foreshadowing of the tragic events to come.
Additionally, a discussion about the reliability of a first-person narrative and its connection to The Remains of the Day demonstrates how an author might use the narrator's perspective to plant doubt and foreshadow future revelations. Finally, LibreTexts™ also illustrates the use of foreshadowing in the broader context of a narrative, such as the narrator's early encounter with a 'fearful man' hinting at future significance to the plot.