DeFi (decentralized finance) refers to digital assets and financial smart contracts, protocols, and decentralized applications (dApps) built on decentralized blockchains, such as Ethereum. DeFi aims to create a financial system that is open to everyone and minimizes one’s need to trust and rely on central authorities. Technologies like the internet, cryptography, and blockchain give us the tools to achieve this, with blockchain potentially representing the final piece of the puzzle.