Harnessing stellar output might not be that interesting. Power density inside stars kind of sucks (about that of a reptile) and stars have bad failure modes.<p>You&#x27;re probably better off disassembling the suckers and storing their matter in a sensible way, rather than have it sit there, burning. Stars are kind of like trash fires; maybe we should be looking for <i>less</i> energy in a type III civ, not shielding.