The document discusses what games are good and bad at. Games are bad at being cheap, tricking students into learning, allowing limitless exploration, adhering to time limits, understanding mistakes, and having long shelf lives. However, games are good at giving the brain what it wants, illustrating complex systems, keeping people in a state of flow, showing new perspectives, being authentic, raising questions, creating shared experiences, allowing independent exploration, providing practice for dangerous situations, creating teachable moments, and giving students ownership.