I recently found an interesting read on the mysteries of quantum mechanics, here : Don't know about you, but I am personally confused by this result. How can a photon travel faster than itself? If it can travel faster than itself, than what does that mean for the universal speed limit? My own uneducated guess is that this phenomenon, called quantum tunneling, only applies in limited cases (such as the one established for the second set of photons). Tunneling as far as I am concerned is similar to teleportation, in that you jump from one place to another without crossing the intervening space (in this case, the barrier). But this discrete motion is different from continuous motion, which is what we usually associate with the speed of light. In terms of the latter, the photon is the fastest and nothing can surpass it. So most of the time, a photon would be moving continuously at the speed of light, but in cases where it encounters a barrier, then it can jump places and reach its destination faster than it is supposed to. This would probably be what distinguishes the first photon from the second in the experiment. What do you guys think?