We are a commune of inquiring, skeptical, politically centrist, capitalist, anglophile, traditionalist New England Yankee humans, humanoids, and animals with many interests beyond and above politics. Each of us has had a high-school education (or GED), but all had ADD so didn't pay attention very well, especially the dogs. Each one of us does "try my best to be just like I am," and none of us enjoys working for others, including for Maggie, from whom we receive neither a nickel nor a dime. Freedom from nags, cranks, government, do-gooders, control-freaks and idiots is all that we ask for.
As the article tries to explain, generating the high temperature is less than half the problem. The trick is to generate the temperature while maintaining a density high enough that the reaction rate is high enough to matter. So far the only we we've found to do this is inertial confinement, that is exploding a medium to large fission device around the outside of the reactants. Pretty efficient, but not very sustainable.
Anyone who has studied good old PV = nRT should realize that P and T are on opposite sides of the equation. Increasing them both at the same time takes some doing, and so far a lot of outside energy.
Another guy named Dan