Earl

im not keen on constants or maths in that fact, its all too human.

http://www.livescience.com/29111-speed-of-light-not-constant.html

energy / matter is never lost its always balanced, out of reach maybe but still in existance, (it is an interesting thought that if you can never interact with something is it lost i guess its one point of view) nothing can leave the universe unless matter / energy can skip between parallel universes, which is an interesting concept in itself and i think i have heard something about that somewhere as some sort of quantum state / property, cant recall which, but it was theoretical at best i think.