Changes

Under the Copenhagen interpretation, the uncertainty is not revealed until the wave function collapses, which, in layman's terms, means until we open Schrödinger's box and look at the cat.  Until then, the wave function is exact and eternal.  It does not "run down".  For example, the wave function of a Hydrogen atom in the ground state is

Under the Copenhagen interpretation, the uncertainty is not revealed until the wave function collapses, which, in layman's terms, means until we open Schrödinger's box and look at the cat.  Until then, the wave function is exact and eternal.  It does not "run down".  For example, the wave function of a Hydrogen atom in the ground state is

:<math>\Psi = e^{\frac{me^2}{4\pi\varepsilon\hbar^2}}</math>

:<math>\Psi = e^{\frac{me^2}{4\pi\varepsilon\hbar^2}r}</math>

Forever.  The Hydrogen atom ''really is a perpetual motion machine''.  (Except for issues involving GUT's, which are outside of Quantum mechanics ''per se''.)

Forever.  The Hydrogen atom ''really is a perpetual motion machine''.  (Except for issues involving GUT's, which are outside of Quantum mechanics ''per se''.)