Web3 is a shorthand for the idea of rebuilding internet services on decentralized infrastructure – primarily blockchains – so that users own their data and assets rather than renting access from platform companies. The term was coined by Gavin Wood, co-creator of Ethereum.

The pitch: Web 1.0 was read-only (static pages). Web 2.0 was read-write (user-generated content on centralized platforms like Facebook and YouTube). Web3 aims to be read-write-own, where the protocols themselves are open and the value accrues to participants rather than platform operators.

What Web3 Changes#

Ownership – Cryptocurrency and tokens give users portable, self-custodied assets. A user’s wallet and on-chain history travel with them across applications, rather than being locked inside a single platform’s database.

Governance – DAOs replace corporate boards with token-weighted voting. Protocol upgrades, treasury allocations, and policy changes can be decided by the community that uses the protocol.

Permissionless composition – Smart contracts on public blockchains are open by default. Anyone can build on top of existing protocols without asking permission, which is why DeFi protocols like Uniswap can be integrated into other applications freely.

Identity – Systems like ENS (Ethereum Name Service) and on-chain attestations let users build portable, self-sovereign identity without relying on a centralized provider.

Criticism#

Web3 has drawn pointed criticism. Jack Dorsey argued that venture capital funding behind many Web3 projects recreates the same power dynamics it claims to replace: “You don’t own web3. The VCs and their LPs do.” Elon Musk called it “more marketing buzzword than reality.”

The practical criticism has weight too. On-chain transactions are slow and expensive compared to centralized alternatives. User experience remains poor – key management, gas fees, and irreversible transactions create steep onboarding barriers. Many “decentralized” applications still depend on centralized frontends, RPC providers, or cloud hosting.

Whether Web3 achieves its goals or remains a niche ideology is an open question. The underlying technologies – blockchains, smart contracts, token standards – are real and useful regardless of how the branding plays out.

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