Today, let's discuss a concept that more and more people are talking about recently: Web4 and its core issue—trust.

Through blockchain technology, Web3 aims to enable users to truly own their data, identities, and assets. That's why many call Web3 the decentralized internet. But the problem is, if trust alone isn't enough for the internet, then the internet is about to face an even bigger change.

The emergence of AI is also why more and more people are starting to talk about Web4.
In the worlds of Web2 and Web3, the main entity of the internet is basically just one—humans.
People create content, make decisions, and conduct transactions. In the vision of Web4, the main entities will also include AI.
Automated machine systems. In other words, the future internet might become a collaborative network where humans and AI participate together.

Here's a simple example. In the future, people might not only answer questions but also automatically complete research tasks themselves—finding data, purchasing computing power, and even engaging in economic activities.
If AI is to accomplish these tasks, a question arises: how will AI handle payments and transactions?
Traditional banking systems are clearly not designed for machines.
Blockchain networks, on the other hand, happen to have several features:
1. Permissionless accounts
2. Self-executing smart contracts
3. Globally available digital assets
This is also why many technologists believe that Web3 could serve as the infrastructure for Web4.

In simple terms, Web3 addresses trust issues, while Web4 solves intelligent collaboration problems.
They are not replacements for each other but rather complementary layers.