How Perlin's Law Makes Gaming Credible

simoniker writes "Veteran game designer Ernest Adams has posted a new column on 'Perlin's Law' which suggests that all books, movies, and games have a 'credibility budget'. For games, both the designer and the player decide what happens: '...the story itself can only tolerate a certain amount of improbability before the credibility budget is exhausted, and the story is ruined.' According to this new law, named after Ken Perlin, who gave birth to the concept, games should not be infinitely wide-ranging or allow the player to do anything he wants."