Richard Clark wrote:

Cecil Moore wrote:
Of course, in reality there's no such thing as complete
cancellation.

There's no such thing even in a perfect world.

Since there's no such thing as a perfect world, that's a
moot point. But complete cancellation can certainly happen
in a human mind. All it takes is equal magnitudes and
opposite phases of conceptual EM waves. That's what makes
us different as a species.

You have taken a simple conceptual example to extremes.
Even more extreme is that there's no such thing as an
exact height, width, or depth, or an exact time, or a
point, line, or plane. There is no exact voltage, current,
or power except maybe at the quantum level. There is no exact
characteristic impedance. The list is endless. Why you choose
to engage in such silly diversions away from simple truths is
interesting. Taken to your extremes, nothing, including
communication among humans, is possible.
--
73, Cecil http://www.qsl.net/w5dxp


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