<div>Ben, I think one way to evaluate this is to compare this with SPS's on a technology readiness scale (<a href="http://en.wikipedia.org/wiki/Technology_Readiness_Level">http://en.wikipedia.org/wiki/Technology_Readiness_Level</a>). I think that's what a lot of these discussions come to. You're not going to convince anyone with a sound theory without a demonstration first. I'd put space solar power at a level 5. I think all of the components have been demonstrated to work in relevant environments, but it's still lacking a working prototype. Is there a prototype Polywell reactor?</div>
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<div><em>Kevin</em></div>