Meta CTO Andrew Bosworth revealed on the Big Technology Podcast that the team deliberately exhausted all pathfinding work and forward-looking research reserved for the next generation when delivering LLaMA 3, leaving the R&D pipeline completely empty for LLaMA 4. This caused Meta to immediately fall behind competitors in core areas of Reasoning and Mixture of Experts (MoE), forcing Mark Zuckerberg to shift strategies into an all-out "founder mode" focused on securing computing power and top talent. To make up lost ground, Meta launched an urgent "wartime mobilization," ordering thousands of senior engineers from non-AI departments to pause core projects and reassign overnight to label expert code data for AI training, sparking deep internal resentment with some employees complaining to the media that the work felt like "forced labor in a concentration camp." Bos acknowledged in a leaked internal email that the management was "atrocious" but insisted the strategic direction was correct, as Meta began tracking low-level interaction traces of employees typing and clicking to teach large language models how to use computer software normally like a human. Bos argued these tensions align with his concept of "Pain is rehab," stating the era of universal monolithic large models is over.