When creating an entertainment product, be it a movie or game, your user’s expectations are the canvas you paint on. In some places you deliberately violate them, in others you accommodate them at the expense of “realism.”

An amusing example: In the Sly Stallone rock climbing action movie “Cliffhanger,” they shot a scene where he ice climbs without an axe. To get past a certain section, he dips his gloved hand in cold water and freezes it to the ice, using that for traction.

This is an actual technique alpinists have used. But test audiences (who are not alpine climbers) rejected it as preposterous. So it’s on the DVD as a “deleted scene,” but wasn’t in the cut they released to theatres.

The movie also features a “bolt gun” he carries that can sink a bolt into rock, which can then be used as a hold or to attach a carabiner. No such thing is possible with current technology, but audiences accepted it as possible, so it plays a prominent role in the plot.

The movie’s producers were catering to their audience’s expectation as they actually were, not as we may wish they were.