Could you post a link to NatureNews so we can get some context. Also I don’t understand why there would be a maximum ideal Q. Wouldn’t higher Q always be better? I would expect people to talk about a minimum Q that will allow one to get back enough energy to power the next pulse in addition to provide a reasonable output. Focus Fusion has the ability to be viable at relatively low Q because it gets its energy back as electricity rather than heat so that it can avoid Carnot cycle losses.
