What is the difference between Polygon and Matic?

I'm a bit confused about the relationship between Polygon and Matic. Could you please clarify the difference between these two terms? I've heard them mentioned interchangeably in some crypto discussions, but I'm not quite sure if they're the same thing or if there's a distinct difference between them. Could you explain the distinction, if any, and how they fit into the broader cryptocurrency and blockchain ecosystem? I'd appreciate it if you could keep the explanation concise yet comprehensive, as I'm still learning about this fascinating field. Thank you for your time and assistance.