Entertaiment is a broad category of activities that are enjoyable and stimulating. These can include sports, performances, games, or just plain fun. Often entertainment hits on the points that the brain was evolved to deeply react to, in order to understand and navigate the social world. One example is Scheherazade, a story in the Persian professional storytelling tradition that inspired composers like Rimsky-Korsakov and Ravel to turn it into musical compositions; director Pasolini to make a film adaptation; and an innovative video game. Entertainment can be enjoyed on any scale, from a private event for two to a global audience.