Unfortunately, there’s no intuitive way to understand why “the energy of the rest mass of an object is equal to the rest mass times the speed of light squared” (E=MC2). The answer Einstein came up with was , which is time as measured by clocks on the moving object in question. Notice that the energy and momentum here are not the classical (Newtonian) energy and momentum: and . The “proof” came when E=mc2 was tested experimentally (with particle accelerators ‘n stuff). So conservation of energy, momentum, and matter are all actually the same conservation law!

When you want to outsmart the world, you turn to the facts. And the facts are in the science.