Magnetic confinement is needed for the continuous-reaction donuts like French scientists are building. The NIF strategy is more like an internal combustion eng

Magnetic confinement is needed for the continuous-reaction donuts like French scientists are building. The NIF strategy is more like an internal combustion engine: load fuel, start reaction, capture energy, remove byproducts, start over. The lasers are acting like spark plugs, triggering the fuel to release all its energy at the top of each cycle. In other words, the French strategy is "build a miniature sun", the American strategy is "build a miniature hydrogen bomb". In theory, it should be easier, hydrogen bombs already exist after all, but to trigger the reaction, you need to find a way to squeeze a lot of energy into a really small space to make the hygrogen atoms kiss, and you can't use the traditional method of "put a plutonium bomb next to it" for obvious reasons.