// GLOSSARY -- BLOCKCHAIN & CRYPTO FUNDAMENTALS

What is Web3?

1 min read Updated

Web3 is the vision of a decentralized internet where users own their data, identity, and digital assets — built on blockchain technology, smart contracts, and token-based economics rather than centralized platforms.

WHY IT MATTERS

Web3 is the conceptual successor to Web2 (the social, platform-dominated internet). Where Web2 companies own user data and monetize attention, Web3 aims for user ownership: your wallet is your identity, your tokens are your assets, and protocols replace platforms.

The technical stack: blockchain for state and settlement, smart contracts for logic, IPFS/Arweave for storage, and tokens for coordination and incentives. The user experience layer is catching up — wallets, account abstraction, and L2 scaling are making Web3 more accessible.

Web3 is both a technology movement and a philosophy. The technology is real and useful. The vision of replacing all centralized services is aspirational and debatable.

FREQUENTLY ASKED QUESTIONS

What's the difference between Web2 and Web3?
Web2: platforms own data, users are products. Web3: users own data, protocols replace platforms. Web2 is read-write. Web3 is read-write-own.
Is Web3 actually used?
DeFi processes billions in daily volume. Stablecoins are used for real payments. NFTs enable digital ownership. The usage is real, though mainstream adoption is still early.
What are Web3's biggest challenges?
User experience (wallets, gas), scalability (despite L2 progress), regulatory uncertainty, and the tension between decentralization ideals and practical needs.

FURTHER READING

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