Chinese developer Guo Hangjiang, a 20-year-old student, built MiroFish in just 10 days. The AI engine generates thousands of digital humans with their own personalities, memories, and behaviors, then drops them into a virtual world to simulate the future.

• Open source framework on GitHub for large-scale AI agent simulations
• Chinese tech billionaire Chen Tianqiao committed ~$4.1M (30 million yuan) to incubate the project
• Originally an experiment, now a serious multi-agent simulation platform
• Could be used for prediction markets, social simulations, urban planning

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