China's EAST Shatters Fusion's Density Ceiling

China's EAST tokamak has experimentally validated a 'density-free' plasma regime, sustaining densities 1.3-1.65 times the Greenwald limit. This breakthrough challenges decades-old tokamak constraints, potentially compressing fusion commercialization timelines by years. Global energy markets face reconfiguration as fusion edges closer to viability, reshaping decarbonization and resource geopolitics.