What is energy? Does E=MC² mean energy equals mass times the speed of light squared?
No, you’re just taking one isolated little Einsteinian equation and making it significant, and that’s way, way, way, way beyond where we are. We can define energy very simply: It is the ability to do work. Is it measured in Joules? Yes, Joules or ergs. Does each thing have an intrinsic amount of energy? Like that pillow on that couch, does it have a specific amount of energy? Sure, I could throw that into the fire and the chemical energy of the bonds that keep that together will be converted into heat. Most of it will go up the chimney but some of it will make you warm and so, yeah, there’s an intrinsic amount of energy there. Every atom in our universe has energy, some very difficult to get to and some easier to get to. In fact, there’s such an immense amount of energy that’s inaccessible because everything at the nuclear level — if we could somehow get the energy that’s stored in the nucleus out of there, then we’d have — A nuclear bomb! Well, a bomb or a nuclear reactor. But it’s no
