There are many good points here, but I'm dismayed at the complete lack of discussion (heck, no mention even!) of stellarators. It seems to me that computing po

There are many good points here, but I'm dismayed at the complete lack of discussion (heck, no mention even!) of stellarators. It seems to me that computing power has made them quite viable (as shown by the German Wendelstein Stellarator), while the Tokamak design is basically an extremely old Russian design that has never performed to expectations. So if I were stuck with his assumption that fusion = tokamak, then yes, he'd be completely right. But if stellarators achieve their promises, then he's missing the answer completely (and given the Germans success with the Wendelstein, I have a strong confidence that tokamaks will be shuttered within a decade; abandoned to the better technology of the stellarator).