BTC = digital gold (store of value). ETH = digital oil (utility cho DApps). ETH inflationary mức -1% tới +0.5%/năm sau EIP-1559. BTC fixed supply.
Arbitrum, Optimism, Base, Polygon — giảm gas fee 10-100x. ETH mainnet làm settlement layer. Daily active users L2 đã vượt mainnet 2024.
Stake 32 ETH (~$110k) chạy validator. Yield ~3-4%/năm. Lido (liquid staking) — stake bất kỳ ETH amount, nhận stETH. Risk: slashing 1-32 ETH nếu vi phạm rules.
Uniswap (DEX), Aave (lending), Curve (stable swap), Lido (liquid staking), MakerDAO (DAI stablecoin). TVL ~$50-80B (2026).
1) Spot ETH on Binance/Coinbase. 2) Stake qua Lido (liquid). 3) DeFi yield farming (advanced). 4) ETH ETF (Mỹ approved 2024).