I will put this in a seperate comment because people may want to comment on this in isolation.
We have two interesting laws
Classic physics: Energy can not be created nor destroyed
QM: Quantum information can not be created nor destroyed
The current view of QM is to make the two laws one and the same otherwise there is the possibility of violations
So for QM ..... Quantum Information = Energy
This is violently opposed by some classical physicists most notably Roger Penrose (
http://en.wikipedia.org/wiki/Roger_Penrose) who like Einstein believes GR should cover all things on space and time.
The issue comes up heavily in black holes because QM does not see conventional forces like gravity under QM we say a black hole can not simply destroy matter like the classic physics view. Penrose argues QM measurement are non-unitary (they have no units and therefore no meaning) and therefore they can be destroyed. For Penrose the argument is vital for his Comformal Cyclic Cosmology theory (
http://en.wikipedia.org/wiki/Conformal_Cyclic_Cosmology).
This is the classic square off QM versus GR.
I have to say I am firmly on the QM side simply because it would open up paradoxes in the normal universe.
