Mezo is a Bitcoin-centric financial ecosystem, acting as an "economic layer" or Bitcoin bank, that lets users access Bitcoin utility (like borrowing, spending, earning) without selling their BTC, using features like its own stablecoin (MUSD) and EVM compatibility for building decentralized apps (dApps). It aims to turn Bitcoin into a productive, spendable asset through DeFi-like services such as mortgages, loans, and yield generation, powered by holding Bitcoin as collateral.