ah, gotcha. My bad smile emoticon Physics generally makes time
  go away because it mucks up the calculations - makes them too
  complicated. How can you measure an object that's under constant
  change? We have to pretend (useful fiction) that time doesn't
  matter in order to do so. == In theory that's true. We have no
  way to verify the subjective experience of a photon - just a
  mathematical convenience. Also, light rarely travels at the
  speed of light anyway. There's usually something in the way that
  slows it down somewhat, even if it's stray electron charges or a
  little gravity here and there. ==