Richard Clark wrote:

As waves are completely independant, then they never interact.

Perhaps we can agree that they could at least share a common media
through which to propagate.

A load
is required to reveal the cancellation.

A load - like a transducer of some sort. That would indeed be
required in order to convert the effect to a form that we can more
readily observe.

No load, and any issue of
cancelling fields is strictly limited to what goes on between the
ears.

I hope you're not suggesting that if we cannot observe the
interference effect, it does not occur. There is good reason to
believe that just the opposite is true, Richard. It's a real paradox.
;-)

73, Jim AC6XG