Web3 is a vision of an internet built on blockchain. In this vision, users own their data, wallets, and digital assets. They are no longer products of big platforms. Whether Web3 will succeed or fail is still unclear. This lesson shows both the vision and the current reality.
Web1, Web2, Web3 - The Evolution
The internet has evolved through three eras. We are now moving from the second era to the third.
Web1 (1990s - early 2000s): Read-only web. Consisted of static, informational pages hosted by decentralized servers. Users were passive consumers. No user accounts or centralized profiles.
Web2 (2004 - present): Read-write web. Characterised by user-generated content, social networks, and e-commerce. Dominated by highly centralised tech monopolies (Web2) that harvest user data and attention for advertising revenue.
Web3 (Vision): Read-write-own web. Powered by blockchain systems. Users interact directly with decentralised apps (dApp), own their assets, and govern protocols collectively.
The Web3 Vision
The Web3 vision targets main problems of Web2. These include platforms blocking users, selling user data for ads without pay, and user assets being locked inside closed databases.
In Web3, your wallet address is your digital ID. You control it, not a tech platform. Your digital assets live on the blockchain. They stay yours even if an app shuts down. You gain token rewards for using apps, creating real digital ownership.
Wallets as Identity
The core Web3 concept is the wallet as your ID. In Web2, you have many accounts controlled by different firms. In Web3, you log in with your wallet. This is a single ID that no platform can take away.
This works today. You can log in to sites with your wallet without typing a password. NFTs prove your access to web groups. On-chain records track your activity across apps.
The Current Reality
In reality, Web3 is still hard to use. Web3 apps are much more complex than Web2 apps. Also, many supposedly decentralized apps still rely on central servers and keys.
Infrastructure is a major limit. High gas fees make using Ethereum too expensive for daily tasks. Handling wallets requires technical skills. Losing a seed phrase means losing your funds forever, with no easy recovery tool.
Honest Assessment
Web3 targets real problems. User-owned data and ID are very useful. DeFi and voting work today. However, replacing the daily web for regular users faces big adoption hurdles that are hard to solve.
Web3 is most usefully understood as a set of tools and principles - not as a single inevitable future. Some Web3 concepts (self-sovereign identity, verifiable digital ownership) are genuinely valuable and will likely persist in some form. Others (every application moving on-chain, complete decentralisation of all internet infrastructure) face practical barriers that may prove insurmountable for mass adoption. Engaging with Web3 tools while remaining honest about the distance between vision and current reality is the most productive approach.