This paper proposes that the future of artificial intelligence lies in plurality and social interaction rather than a single, monolithic super-intelligence. The authors argue that modern reasoning models already function as a "society of thought," where internal debates between different perspectives drive more accurate problem-solving. By moving toward a hybrid ecosystem, human and machine agents can form "centaur" configurations that mirror the collective intelligence found in biological evolution and human institutions. This shift requires a new focus on agentic governance and institutional design to ensure that diverse AI entities can coordinate and provide necessary checks and balances. Ultimately, the text suggests that the next great leap in intelligence will be defined by collaborative networks that extend our existing cultural and social frameworks into the digital realm.