Web 4.0 is the next generation of the internet after decentralization, integrating artificial intelligence, the Internet of Things, virtual-physical fusion, and blockchain.

Summary in one sentence:
Web 4.0 ≈ “AI Agent + Metaverse + Blockchain” — a trinity that transforms the internet from a tool into a cohabitant partner that can proactively understand you, act on your behalf, and deeply integrate with the physical world.

Web 1.0: Read-only experience, where users can only passively receive information, like reading a newspaper.
Web 2.0: Read + Write, where users can create and share content, forming social networks.
Web 3.0: Read + Write + Own, where users truly own their data and assets, emphasizing decentralization.
Web 4.0: Symbiotic / Intent-based, where the internet acts like an intelligent partner, proactively understanding intentions, predicting needs, and executing across virtual and physical worlds.