One of the earliest and simplest reviews of the theory of relativity. While, Dr. Musharafa did resort to using pythagorus theorem to illustrate an example in a two dimensional space that a physical measurement can stay constant (length) while depending on the frame of reference the coordinates change (somewhat complex method), he still made the point to the reader, that our view of this world as a three dimensional space, can be extended to include time as another dimension, and in doing that time and space can be taken as a combined new space, where another physical parameter, like speed of light, can stay constant, but only if space and time are not absolute to all observers. In illustrating this difficult concept, he finally ties it to the philosophical question, that the entire time and space are part of one. This concept, that all time and space are part of one "whole" just explains, at least in my mind, how there could be the concept that all future and past are known, in some other frame of reference; Gods frame of reference.