That is actually a great explanation, thanks. So, photons don't experience time? Does that mean that they don't experience entropy, either? I.e. They don't lose any energy in transit, since to them "transit" is instantaneous.

Another question this raises for me is that if photons move in a timeless state between 2 points, what accounts for the period of their oscillation in the particle/wave duality? If they are tracing the fastest path through spacetime, yet to them, the time dimension is non existent, how do they have wave characteristics?