EAST's Density Breakthrough: Fusion's New Frontier Unlocked

China's EAST tokamak has experimentally surpassed the Greenwald density limit by 65%, accessing a stable 'density-free' plasma regime. This validates theoretical models and challenges decades-old tokamak constraints, potentially boosting fusion power output quadratically. Amid $6B+ annual global investments, it accelerates the race toward ignition and grid-scale energy.