A light source emits six pulses each second - the distance between the pulses is, accordingly, D = 50000 km. For a stationary (with respect to the source) observer the frequency and the speed of the pulses are:
f = 6 ; c = 6D
Then the observer starts moving at (1/2)c = 3D away from the source. According to special relativity, the frequency and the speed of the pulses relative to the moving observer change as follows:
f' = 6 - 3 = 3 ; c' = 6D - 3D = (6 - 3)D = 6D
6 - 3 = 6
that Einsteinians apply to the speed of light but to nothing else in Divine Albert's world is the essence of special relativity:
This calculation, 6-3=6, so popular in Divine Albert's world, is equivalent to the calculation 2+2=5 popular in Big Brother's world:
http://ebooks.adelaide.edu.au/o/orwell/george/o79n/chapter1.7.html "In the end the Party would announce that two and two made five, and you would have to believe it. It was inevitable that they should make that claim sooner or later: the logic of their position demanded it. Not merely the validity of experience, but the very existence of external reality, was tacitly denied by their philosophy. The heresy of heresies was common sense. And what was terrifying was not that they would kill you for thinking otherwise, but that they might be right. For, after all, how do we know that two and two make four? Or that the force of gravity works? Or that the past is unchangeable? If both the past and the external world exist only in the mind, and if the mind itself is controllable what then?"