Cecil Moore wrote:

Jim Kelley wrote:



Cecil Moore wrote:

There existed energy in the two waves before they were canceled.


I really don't want to go on ad infinitum about this, but the only
"before" would have been "before" the conditions for wave cancellation
existed.


Wave cancellation is a continuous steady-state process.
Every instant of present time, reflected waves are in
the process of being canceled.

During which time everything "before" is exactly the same as
everything "after".

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