DeFi (Decentralized Finance)
Web3 / defi
Decentralized Finance refers to a blockchain-based financial ecosystem that recreates traditional financial services—lending, borrowing, trading, and asset management—without relying on centralized intermediaries like banks, brokers, or exchanges. DeFi protocols operate through smart contracts that execute transactions automatically when predetermined conditions are met, enabling peer-to-peer financial interactions. Users maintain custody of their private keys and assets while accessing financial services directly from their wallets, creating a permissionless and globally accessible alternative to conventional banking infrastructure. Example: Uniswap is one of the largest DeFi protocols, functioning as a decentralized exchange where users trade cryptocurrencies through automated market maker (AMM) liquidity pools. Launched in 2018, Uniswap has processed hundreds of billions in trading volume and allows anyone to become a liquidity provider and earn fees, demonstrating core DeFi principles of open participation and elimination of gatekeepers. Why it matters for DeFi: DeFi represents the foundational shift from traditional finance toward blockchain-native systems, enabling financial inclusion, reducing intermediary costs, and creating composable protocols ("money legos") that unlock entirely new financial products and yield strategies impossible in traditional markets.
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