From: adventmagic@gmail.com   
      
   Imagine two space ships, in a universe empty of everything else.   
   The two ships were flying away from each other, and you had to   
   determine which ship was flying faster.   
      
   Lets say the first rocket ship's computer said it was flying at   
   4,000 MPH.  And the second rocket ship's computer sad that   
   it was flying at 10,000 MPH.   
      
   Would there be any reason to believe this was true just because   
   the computer said so? It would be just as logical to say the first   
   ship was flying at 14,000 MPH and the other was stationary.   
      
   That's why we use light as a constant, to judge the motion of   
   other things.   
      
   However, where did light come from and will it always be here?   
   Without light everything is subjective.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)