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Meta faced a dangerous leadership crisis as Zuckerberg and chief AI scientist Yann LeCun clashed over fundamental AI strategy. LeCun advocated open-source development, while Zuckerberg secretly considered abandoning their successful Llama project in favor of closed competitors like OpenAI. This philosophical split threatened Meta's AI future, as Zuckerberg desperately threw $100 million at outside talent rather than supporting his Nobel Prize-winning scientist.