Forgetful AI Agents Spontaneously Build Shared Culture on a Fading Notepad

Three minimal AI agents with a shared whiteboard that constantly fades spontaneously built a persistent culture, keeping a story alive for 100 ticks even though individual notes decay in ~4 ticks. The agents reinforced the strongest idea each tick, achieving 99% story consistency versus 3% without coordination. This demonstrates that group memory can outlast any single agent's recall.