Does anyone else wish they would make Supermans powers internal ? Even in the science of Superman, they stated the energy difference from a yellow and red star would be minimal! Not only that but the amount of energy he could gain from ANY star (Blue,yellow, red, brown etc) at 100 % absorption rate, isn't nearly sufficient to provide him with the power levels he regularly illustrates ? He have trouble being as powerful as a locomotive as a 'Living Solar battery'. I don't know why they dont make the Solar radiation as a catalyst for some form of internal 'cold fusion'. His cells would the go from living solar batteries, to living Suns. I.e. the sunlight would be used to synthesise organic molecules that his body would then 'Hyper metabolise' via cold fusion. The fusion reaction could be maintained via his Bio electrical field, consequently making his invulnerability a bi product of this Hyper metabolism. IMO, isn't only more realistic it makes him FAR more impressive. A 'Living Sun' sounds a lot more impressive and Godlike than a Living Solar Battery.