https://spectrum.ieee.org/chinas-thorium-molten-salt-reactor
"During NIF's 5 December laser shot, the amount of energy produced by the fusion reaction (3.15 megajoules) exceeded the laser energy (2.05 MJ) aimed at the capsule. Put another way, for the briefest blink of a moment, the deuterium and tritium within the capsule underwent a self-sustained reaction. From a scientific point of view, this is a tremendous step."
