Currently, there's a plethora of talk about AI agents, but most only grasp the "techniques." Only Cai Wensheng has revealed the "principle" of AI agents. The ultimate arena for AI agents is blockchain + Web3. Without understanding encryption and blockchain, one cannot truly comprehend the underlying rules of the next-generation internet. ✅ Past: Internet+ ✅ Present: Blockchain + AI+ The era has shifted; infrastructure is encryption. Blockchain technology is the core infrastructure for the implementation of AI agents. Looking from the past of Internet+ to the future of Blockchain + AI, identity, rights confirmation, and value transfer all rely on encryption technology. A new cycle has arrived; understanding blockchain and encryption is the ticket to participating in the next round of wealth and dividends.