I is not singular — Multi-Agent Simulation with Cognitive Architecture on a Single 8GB GPU

Reading Stanford's Generative Agents, one thought stuck with me - that's just one LLM cosplaying 25 personas, isn't it? "I" is not singular. What does it actually take to be a different person? (If you're Korean and over 30, you know where this line comes from. The grammatically wrong "is" is intentional - "I" is being treated as a word, not the speaker. From the Korean fantasy novel Dragon Raja, 1998.) Same stimulus, different reactions. Same model, different personalities. This had to be built with structure, not prompts. I dropped 4 LLM agents into an empty plaza and let them live.