In the early years, I started my own business and developed products related to search. By chance, I came across the concept of the Semantic Web (which I have bought several books but still can't bear to throw away), which was then called Web 3.0. The concept of web3.0 has been constantly changing for more than 10 years (the second time Gavin Wood proposed the new concept web3), but it has not been implemented yet. Agents and MCP are currently in high demand. Looking through the books on the Semantic Web that I bought over 10 years ago, both the agent and MCP feel familiar. These things have just undergone conceptual changes and technological advancements. But it has also originated for a long time.