From: ram@zedat.fu-berlin.de   
      
   Luigi Fortunati  writes:   
   >it goes only and always in one direction and never in the other, why?   
      
     I currently can't go on websites, but maybe what is intended   
     is this: a particle is placed on a geodesic compatible with   
     that particle. The particle now can move on the geodesic,   
     but how does it know in which direction as the geodesic has   
     no preferred direction?   
      
     The answer might be: While a geodesic has no preferred   
     direction, the time coordinate has. The particle moves into   
     that direction where its time coordinate is growing - assuming   
     the time coordinate was chosen in such a natural manner that   
     it grows towards the future of the given universe.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)