Entertaiment is a vast, mutable form of cultural production that can be as simple as playing a game or solving a crossword puzzle or as complex as hosting a ball or creating a religious festival. It is a medium for conveying messages that can have serious intent, such as promoting understanding or providing insight into a complex social issue. It also has the potential to inspire joy and stimulate learning, but it can also be harmful. Entertaiment has a history of crossing over from various media, allowing for creative remix that keeps it relevant and fresh. The word entertainment is derived from the Latin intertenere, which means to hold inside.