Gene Fuller wrote:
... how can you learn anything about the details of a
complex system by averaging and netting?

Because the conservation of energy principle is about
averaging and netting. Because steady-state analysis
is about averaging and netting. Because engineers
have 200 years of averaging and netting behind us
to prove that it works. When you try to track an
individual electron's velocity and position, guess
what happens?
--
73, Cecil http://www.qsl.net/w5dxp