Keith Dysart wrote:
Can you expand on the two different interpretations of
"transfer" that will bring these views into alignment?

Perhaps you really are disagreeing on whether EM
waves always transfer energy (using the common
definition of "transfer").

Jim refuses to provide a reference for his definition
of "transfer". My unabridged Webster's has 20 definitions
for the word including, "to be moved from one place to
another". I say the light waves from Alpha Centauri are
transferring, i.e. moving energy from that star to other
points in the universe. The Poynting vector for those
light waves can be computed if necessary. EM waves cannot
exist without energy.
--
73, Cecil http://www.w5dxp.com