Source: Polygon Lightpaper (Feb. 2021), avail. online.
What: Digestion of Polygon Lightpaper. Amuse-bouche.
One-liner: "With Polygon, any project can have it's dedicated, optimized instance of Ethereum which combines the best features of stand-alone blockchains (sovereignty, scalability, and flexibility) and Ethereum (security, interoperability and developer experience)." (Id. at 5)
Picture 1: Feature Set
Picture 2: Architecture
Picture 3: Peer Set