Ok i know this maybe stupid to some of you but maybe some might take interest mathmatically. Ok i am not to Cal III but just looking ahead on convergence and divergence i have a question about the speed of light as a function of enery per se. Ok just as the boiling point acts in chemistry could the speed of light not act like that also. You throw in a energy, nothing happens, throw in more, nothing happens, and then boom eventually you go above 100 Celsius Why could C not be like that like its function rises steadily with the amount of energy you put in then you come to a saddle point for a very very long time (i think we have reached (.999999999c) experimentally so very long saddle point but then boom you go over it. to me when i think of the energy the universe had at the beginning it would be infinitely large, so it's a matter of luck we can get to the speed of light let alone pass it. I ask this because if we discover break even fusion i would imagine we cold just keep putting in energy and get ever much closer to C and if it is a mathmatical saddlepoint eventually pass it. I say this humbly i know nothing like most of you so go ahead and bash me for the absurdity and validity of all of this but maybe one of you out there has thought of this before.