Comment on Neil deGrasse Tyson AMAparentComments−galadriel14yMost probably he is talking about the fact that proper time for all events in Photon's own frame is zero, i.e. a frame that move with speed of light will notice that all events are instantaneous.
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Most probably he is talking about the fact that proper time for all events in Photon's own frame is zero, i.e. a frame that move with speed of light will notice that all events are instantaneous.