There's quite a lot of muddled or misunderstood things in this post. ICF targets don't absorb neutrons. Direct conversion is well understood: https://en.wikip

There's quite a lot of muddled or misunderstood things in this post. ICF targets don't absorb neutrons. Direct conversion is well understood: https://en.wikipedia.org/wiki/Thermoelectric_generator https://en.wikipedia.org/wiki/Thermoelectric_generator We use steam turbines because they're both efficient and convenient engineering wise. They aren't bad at what they do by any means, so I don't understand why you're saying all these generation technologies using steam is some sort of big criticism. Thermionic generators are an option when you want to minimize size and complexity however. The reactors the USSR launched on radar satellites used them for example. NASA is considering similar designs for Mars and deep space missions (no, I'm not talking about RTGs, but rather single digit Megawatt scale mini reactors under the MegaPower program).