Callbacks and Foreshadowing

Every August, I spend time in Edinburgh at the Fringe festival, usually for a few of the many hundreds of comedy shows.

This year’s acts were as diverse as they come, including the magician Pete Firman, the musical troupe News Revue, and the brash Nick Helm. One factor they all have in common, however, is that each act references something that happened earlier in the show.

In the comedy world, a common structural element is known as a callback, in which a performer will make a reference to a joke or an event earlier in the show. The most memorable example I’ve seen was the comedian Danny Bhoy in his show Dear Epson, which opened with a letter of complaint to the eponymous company. At the end of the show, he closed with the reply he received to that letter.

Done often enough, a callback can become a running gag, making reference not just to the current show but to past shows or outside events. To this day, Jimmy Carr brings up the subject of his tax avoidance, even though it happened ten years ago.

Many stand-ups speak in a rambling manner, so such back-referencing provides a little clue that the rambling is not entirely aimless and that there’s some structure to be found.

A similar technique can be used in prose, where it’s more often known as foreshadowing. There is often a balance to be found between making it too obvious and giving away a later plot point, or making it so subtle that the reader misses it.

A story that manages to walk that line is The Lottery by Shirley Jackson for a good example. The stones mentioned casually near the start of the story play a significant part as the narrative concludes.