Decentralized Finance (DeFi) on Ethereum allows users to lend, borrow, and trade without intermediaries. Protocols like Aave, Uniswap, and Compound offer permissionless financial services. Despite challenges like high gas fees, Layer-2 solutions (Optimism, Arbitrum) improve efficiency. DeFi’s growth highlights Ethereum’s role in creating an open financial system.
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NFTs (Non-Fungible Tokens) represent unique ownership on blockchain. While art (e.g., CryptoPunks) popularized NFTs, use cases now include: Gaming (Axie Infinity). Virtual real estate (Decentraland). Music royalties (Audius). Identity verification. NFTs face criticism for speculation but showcase blockchain’s potential for verifiable ownership.
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Non-Fungible Tokens (NFTs) authenticate unique digital/physical assets on blockchain. While digital art (e.g., CryptoPunks) popularized NFTs, use cases expand: music royalties, real estate deeds, academic credentials, and in-game items. NFTs enable verifiable ownership, provenance tracking, and creator royalties (programmed into smart contracts). Brands like Nike use NFTs for sneaker authenticity; DAOs purchase NFTs collectively. Criticisms include scams and environmental concerns (mitigated by eco-friendly blockchains).
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