Keith Dysart wrote:
1. Power [recall p(t)=v(t)*i(t)] is the rate at
which energy is transferred.

Since we are dealing with superposed waves that would
be the rate at which net energy is transferred.

2. Energy can be transferred when the power is zero.

To my simple intellect, one of these statements
must be false.

Using the rules for superposition, treat each wave
separately and superpose them for a net result.

And it certainly depends upon what definition of "transfer"
that you are using. I am using, from Webster's:

"transfer - move"

Would you please post your definition of "transfer".

The forward wave is moving energy across the zero power point.
The reflected wave is moving an equal magnitude of energy in
the other direction across the zero power point.
The Poynting vectors for the forward wave and reflected wave
are equal in magnitude and opposite in direction. There is
of course zero net power transfer and points where the
net instantaneous power equals zero.

I'm going to keep reminding you that, until you provide
a reference or example of reflections occurring within
a homogeneous medium, nothing that you have to say
about the subject is linked to reality.
--
73, Cecil http://www.w5dxp.com