Has anyone ever wondered why the C^2 in E=MC^2 I&#x27;m sure it wasn&#x27;t chosen at random just because a large constant was needed, it must fall out of some other physics equations.<p>But still, what does that mean? What does the transmutation of energy into mass or visa versa have to do with the universal speed limit?<p>I am always struck by the inexplicable power of mathematics to describe the physical laws of the universe, in often simple equations like this. It doesn&#x27;t have to be that way as far as we know.