Invisibility refers to the state of being unable to be seen by the naked eye. This concept is often explored in science fiction and fantasy, where characters like Harry Potter use magical cloaks to become invisible. In the real world, scientists study materials that can bend light around an object, potentially making it invisible to observers. The idea of invisibility raises questions about perception and reality. Invisibility can also be metaphorical, representing situations where individuals or groups feel overlooked or ignored in society. This can apply to various contexts, such as social issues or mental health, where people may feel unseen despite their presence.