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What is DeFi?
DeFi — Decentralized Finance — financial services built on blockchain smart contracts, operating without banks, brokers, or centralized intermediaries.
How It Works
01 DeFi protocols run as smart contracts on blockchains like Ethereum — code automatically executes trades, loans, and interest payments.
02 Users provide liquidity to pools and earn fees; borrowers collateralize crypto to obtain loans instantly.
03 All transactions are public, permissionless, and settled on-chain in seconds to minutes.
04 Composability ("money legos") lets protocols interact — e.g., a borrowed asset can instantly earn yield elsewhere.
Why It Matters
▸ DeFi removes geographic and institutional barriers — anyone with a wallet can access financial services.
▸ It offers transparency: every transaction and contract is auditable on-chain.
▸ DeFi enables 24/7 markets with instant settlement, unlike traditional financial hours.
▸ Total Value Locked (TVL) in DeFi has reached $50B+ — a significant parallel financial system.
Common Questions
Is DeFi safe?
DeFi carries smart contract risk (bugs can drain funds), impermanent loss, and volatility. Always audit protocols and never invest more than you can lose.
How do I start using DeFi?
You need a crypto wallet (MetaMask), ETH for gas, and to connect to a protocol like Uniswap or Aave. Start with small amounts.
What is TVL?
Total Value Locked — the total crypto assets deposited in a DeFi protocol. It measures protocol size and trust.