If the run holds up to scrutiny, this is a genuine milestone rather than a demo trick: Minecraft has been a standing test for agency since Voyager, and nobody had closed the loop to the Ender Dragon without human scaffolding. The telling detail is not the victory but the grind — hundreds of deaths and thousands of self-written programs suggest long-horizon tasks are still won by brute-force iteration, not elegant planning. The emergent coordination claim deserves the closest look, since that is exactly the part most multi-agent demos quietly fake with scripted roles. At roughly $1,600 per session, the economics are fine for research but nowhere near deployment-grade. Expect game worlds to become the standard proving ground for agent labs, much as chess and Go were for earlier eras. A real step toward long-horizon autonomy — though one boss fight in one sandbox is still a narrow slice of