So the whole idea of "energy" traveling outside the wire is pretty preposterous.
If that was true then the means we have for determining whether or not a wire is hot by placing a device near them would not work, like those little gizmos that you put near an AC line that beep when the line is hot. If all energy was contained inside the wire then transformers would not work. Radios would not exist. etcetera
I never said all the "energy" was traveling inside the wire. I posting earlier that components of the electromagnetic wave - such as the induced magnetic field B - are obviously outside the wire. Even the mathematical paper someone linked on this thread (in a failed attempt to prove the energy traveled outside the wire) described "energy" inside the wire. Please read what I say more carefully so as not to put words in my mouth. Obviously radio transmission is an entirely different subject. Like radio communications via satellite, which I also recently decribed. I.e., photons. You know, EIRP.
have a nice day