Muggle

In the context of general knowledge, a "Muggle" refers to a person who lacks special abilities or knowledge related to a particular sphere, often used in the context of the Harry Potter series to denote someone who is non-magical. It symbolizes the divide between those who possess a certain skill set or understanding—like magic in the series—and those who do not. Broadly, it can be used metaphorically to describe anyone who is unaware or uninformed about niche topics, cultures, or practices outside their everyday experience.