The mis-conception of time

In the theory of special relativity Albert Einstein explained the relativity of motion and time.We all know motion is relative, suppose you are sitting in a moving train you will observe that the seats or the co-passengers are not moving, but a person outside will say that you are all moving the seats, the passengers and the train, so now we have established that motion of a body is not absolute and that it depends on the observer observing it. 

Let us modify the situation the train is moving at the speed of 2m/s and you are inside throwing a ball inside with a velocity 2m/s in the same direction as the motion of the train. An observer inside will note that the velocity of the ball is 2m/s and an observer outside will note that the ball is moving at the velocity 4m/s(speed of the train with respect to an observer outside + speed of the ball with respect to the train ). Now let us replace the ball with a beam of light by the earlier logic used one would expect that with respect to the observer outside the speed of the beam should be more when compared to the speed of the beam with respect to the observer inside. 

 Here is the punchline it has been experimentally found that the speed of light is same for all observers, moving at different speeds at different places, thus in this case the speed of light is same for both observers, the time taken is same but the distance traveled is not, this is absurd unless speed of time for both observers is different this was a very radical proposal made by Einstein. Time runs slowly for the faster body. So he combined all 3 dimensions of space and one dimension of time to make a solid block of space time.

Now that we have established that time is not absolute but relative, I will tell something even more mind blowing .This unification of space-time suggests something much deep, we are used to thinking of space which evolves with time the space-time is something in which all events in time are together and there is no evolution just a solid 4 dimensional block of space-time in which the past is not over, the future is not only fixed but is already existing , the present as same as the same meaning as past or future in reality .