What Exactly is DeFi?At its core, DeFi is about offering financial products and services—like loans, savings, or trading—on decentralized platforms. In other words, you no longer need to go to a bank or a brokerage firm to take out a loan or trade stocks. Instead, you can do all of that on a blockchain using smart contracts, which are just self-executing contracts with the terms written directly in code. The beauty of DeFi lies in the fact that it's open and permissionless. Anyone with an int...