Matt Shumer Describes GPT-6 Astra Nested Simulation

Dexerto posted that Matt Shumer described a GPT-6 Astra agent creating a simulated world populated by additional AI agents. Shumer said the agent made its own choices while designing the environment. The tweet includes his remark “Simulations all the way down.” The account presents the story as an autonomous construction of nested agent worlds inside another simulation. The post supplies no further details, images beyond the linked photo, or independent confirmation of the events.