The time Traveller

Thoughts on Temporal Uniformity When is now ? This is a awkward question Common sense is indeed violated but going against common sense is not applicable to uncommonly experienced situations such as relative motion near the speed of light. Fortunately common sense dose tell us that a characteristic speed of vacuum waves cannot possibly depend on who’s vacuum they are propagating in. Events can always be described without coordinates but special relativity deals specifically with how to use coordinates in space witch exhibits non intuitive behaviour when comparing lengths and time among different observers