Roy Lewallen wrote:
The purveyors of these contrived questions have never been able to
explain how they create these exquisite co-traveling canceled waves
without also creating those nagging reinforced or non-canceled waves.

Strawman alert!
To the best of my knowledge, nobody has ever been stupid enough
to say waves cancel and the energy in them is destroyed. In fact,
I have said exactly the opposite, i.e. waves cancel and the energy
that existed in them before they were canceled is preserved.

I believe it is you who is on record as not caring where the
energy goes.
--
73, Cecil http://www.w5dxp.com