From ''Second Life'' to ''Horizon Worlds''
Technical Fusion: Metaverse and AI, the Two Core Keywords

Metaverse and AI Convergence: History and Future of Technical Fusion. The metaverse is a new digital world based on VR and AR where users interact and engage in economic activities similar to real life. AI enables machines to learn and make decisions similar to humans through data processing and analysis. Early examples: (1) Second Life (early 2000s) — early metaverse form where users created avatars, traded virtual real estate, and engaged in economic activities; AI appeared primarily as NPCs, recording user activities and attempting personalized experiences; AI chatbots provided customer service; still running today with successive updates — a living witness to metaverse and AI convergence; (2) World of Warcraft (2004+) — AI-controlled enemy NPCs with behavior trees and finite state machines; early pathfinding algorithms; NPC social ecosystems creating emergent gameplay; (3) The Sims series — complex social simulation AI modeling needs, relationships, and daily behaviors; demonstrating that AI-driven virtual life simulation creates compelling user engagement without explicit goals; (4) EVE Online (2003+) — player-driven economy with AI-assisted market systems; demonstrating that metaverse economic systems can generate genuine value through AI-enabled complexity. Current convergence: Meta's Horizon Worlds using AI for content moderation, avatar generation, and spatial computing; Epic's Unreal Engine 5 Metahuman Creator enabling AI-powered realistic digital human generation; AI tools reducing development costs for virtual environment creation. Future trajectory: the boundary between "AI-generated environment" and "human-created environment" will become indistinguishable as generative AI matures; NPCs will pass the Turing test in specific contexts; personalized virtual worlds adapting in real-time to individual users will become the standard form of entertainment and social interaction.