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I have great respect for Michael's grasp of physics, but it is my
judgment that in holding this opinion he commits a heresy, and by
teaching it to his students he commits a venial sin.
The orthodox view, which I hold to be correct: The energy is not
substantial; it is not a real entity. The energy is an abstraction. The
energy did not exist before it was invented. The energy is a state
function, a quantity which may be calculated for any isolated physical
system from the values of all the parameters that characterize its
state.
It is appropriate that I cite scripture at this point: Feynman I: 4-1.
If you have not read this short (less than two pages) parable and given
it the contemplation it deserves, I recommend you do so.