Even if there were such a thing as the 'ether' (there isn't;
elecromagnetic
waves don't need a medium to propagate),

I dunno, but doesn't this bring up 'particle theory vs wave theory'
waves require a medium to propogate (I would think) - and -
particles can be shot across a medium-less void
Maybe this will all go back to the 'previous discussion' ain't no such thing
as heat
and no such thing as time - and therefore anything else defined by using
either of those terms do not exist either.