That has nothing to do with the uncertainty of QM. The uncertainty principle rather bluntly states that you cannot know the precise position and momentum of a particle at the same time. The most common interpretation is that particles simply do not posses both attributes at once. But that is all. QM does not say the definition of fields and particles is uncertain, nor that mass and energy are the same thing. Just because the energy distribution in uncertain, does not mean physical laws must fail.Originally posted by wuliheron
I hate to be the one to inform you, but E=MCC is far from an uncertain proposition. It is an absolute and unrelenting statement about existence.