Cecil Moore wrote:

Jim Kelley wrote:

Electromagnetic waves reflect only from real physical boundaries.

Is the V/I ratio at the heart of a source a "real
physical boundary"? If not, why not?

Exactly two reasons: mu, and epsilon.

A physical boundary is neither defined by, nor affected by voltage,
current, irradiance, luminosity, power, wealth, energy, phase of the
moon, sun spots, kharma, or even gravitas.

Has this become a new point of contention, Cecil? You've said that
you always claimed that waves only reflect from physical boundaries.
And that's all I'm saying.

73, ac6xg