Smart Contracts and dApps: How Ethereum is Changing the World (2/4)**
Smart contracts are self-executing algorithms that operate without intermediaries. They are built on:
🔹 **Key Features of Ethereum:**
✔ **DeFi** (decentralized finance: lending, staking, DEX)
✔ **NFT** (unique tokenized assets)
✔ **DAO** (decentralized autonomous organizations)
✔ **Gaming and Metaverses** (blockchain games)
⚠ **But there are also issues:**
▪ High fees (Gas fees)
▪ Scalability (until the transition to ETH 2.0)
