From: fortunati.luigi@gmail.com   
      
   Sylvia Else alle ore 18:03:28 del 05/08/2017 ha scritto:   
   > The acceleration is performed by the travelling twin. The apparent aging   
   > occurs to the Earth twin, many light-years away. It would be surprising   
   > if this were a causal effect.   
   >   
   > Instead, the acceleration just changes the travelling twin's frame, so   
   > as to allow the calculations to be done correctly. It doesn't do   
   > anything to the Earth twin.   
   >   
   > Sylvia.   
      
    The "surprising causal effect" (real not apparent) is the abrupt   
    shortening of the distance between Earth T and Space Station S that   
    passes from almost 40 light-years before acceleration to almost 5   
    light-years after acceleration when the 5 years of travel they are   
    still all to spend.   
      
   If acceleration generates a sudden "space jumping" it must only generate   
   (at the same time) a sudden "jump" of time.   
      
   Luigi.   
      
   --   
   Luigi Fortunati   
      
   Credere e' piu' facile che pensare   
   Believing is easier than thinking   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)