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harrylin is offline
Apr2-11, 09:38 AM
P: 3,178
Quote Quote by Calrid View Post

Yes exactly, why!
I agree with you. Children who never ask asking why (each time one level deeper) become scientists!

PS: the original popular reply to the "why" is because of the existence of a universal medium (Lorentz etc.), and the most popular reply today is because of the existence of a physical spacetime (Minskowski etc.). And likely there are numerous variants on those ideas and many other (such as post #16).