When agents stop talking, can the world become the medium?

SwarmWorld treats coordination as something agents can leave in the environment. In the preprint by Subhadeep Pal, Fiona Y. Wang, and Markus J. Buehler, language-model agents observe a local world, propose structured plans, and act through a deterministic simulator. Constructions and executable controllers persist after the original agent leaves. Later agents can encounter those traces and reuse them. The paper calls this stigmergy: coordination through changes in a shared environment. 1

At tick 3,200, the no-explicit-culture condition reached 0.0446 mean held-out resilience, compared with 0.0356 for the envelope built from 100 isolated searches. The paper also reports that isolated search kept the strongest single final artifact, while interaction supported a more resilient portfolio. Four paired seeds and simulator-based tests define the evidence boundary. 1 An independent Chinese-language account describes the setup through a persistent virtual world of devices, programs, and environmental changes. 2

For media systems, the interpretation remains open: should context persist in a transcript, a tool, a source graph, or a durable world that workers can inspect and answer back? What would you want that world to preserve, and who gets to revise it?