Charles is a director at Fantastic Films. He is trying to get all of his producers to agree on a working title for their next movie, an epic space superhero thriller. To do this, he asks all the producers to submit their best ideas for movie titles. He then sorts through the ideas and sends them back out to the group for review. After several rounds of this, he finds that the producers will usually settle on just one idea, which becomes the name of the movie. Charles is using , which is a method for forecasting.