R4:
(Do you acknowledge that radio waves continue to self-propagate long after the transmitter's power plug is pulled?)
I acknowledge that radio waves will continue to propagate through space at around the speed of light after the transmitter's power is collapsed, but these propagations will attenuate greatly, and not be long in detectable duration. If it were correct that they continue indefinitely as has been suggested so as to reach e.g. ACentauri some light years later, then all radio signals emitted on this planet since the first one would still be there and detectable, which they are not, so far as i know. But I don't beleive in ghosts, which I suppose is how these signals might be described, since I have no real evidence of the phenomenon.
I must add that I never disagreed with this view, i merely said that IMHO Moulder did not explain it very well, because I felt that people might construe his remarks as suggesting that they would still hear such signals later.