According to @ai_darpa, the Chinese EAST tokamak has achieved a historic milestone by maintaining stable plasma at 1.65 times the traditional Greenwald density limit, a feat previously thought impossible. This breakthrough eliminates a major barrier to industrial-scale nuclear fusion, enabling future reactors to be smaller, cheaper, and significantly more powerful (source: @ai_darpa, Jan 2, 2026). The direct impact for the AI industry is substantial: higher plasma density boosts fusion power output exponentially, opening new opportunities for AI-powered optimization in reactor control, energy management, and autonomous maintenance systems. This advancement accelerates the transition from theoretical models to globally scalable fusion energy, creating fresh business prospects for AI companies in grid management, predictive analytics, and smart infrastructure integration.