On Tuesday, August 1, 2017 at 9:21:47 AM UTC+2, Douglas Eagleson wrote:   
   > On Monday, July 31, 2017 at 7:51:50 AM UTC-4, ju...@diegidio.name wrote:   
   > > On Monday, July 31, 2017 at 1:35:25 PM UTC+2, greysky wrote:   
      
   > > > It all boils down to three conditions: no motion, constant motion, or   
   > > > accelerated motion.   
   > >   
   > > Per relativity, we cannot distinguish between no motion and constant   
   motion.   
   > > There are only two cases: inertial vs accelerated frames.   
   >   
   > I am not sure, but since the coming of special relativity   
   > there have been generalized spaces.  A view while in a space became   
   > independent of sighting relative.  Viewing an object can not   
   > determine one of these two cases.  But there is a universe view   
   > allowed in these instances.   
      
   I'm not sure what you are referring to, but in relativity there is no   
   universal frame of reference: that is what relativity means.  OTOH, we   
   can always discern between being in an inertial vs an accelerating frame   
   of reference, and we do not even need to look outside the window for that:   
   we are accelerating as soon as our jiggling starts failing, not to mention,   
   we can actually feel it.  And we can measure that acceleration.   
      
   > Think of the concept of a one dimensional horizon.  Space   
   > at 90 degrees to the assumed motion vector becomes empty.  The   
   > size of this empty determines fractional c speed.   
      
   The fact that the surrounding squeezes in our direction of motion is   
   still all relative: from the point of view of (any observer stationary   
   relative to) the surrounding we are zipping by and length-contracted,   
   from our point of view it's the surrounding zipping by and overall   
   squeezed.  And we would see no distortion at all, in any direction,   
   when looking at other objects that are stationary relative to us:   
   just like the observer stationary relative to the surrounding sees   
   no distortion in the surrounding.   
      
   > This is a partial attempt to introduce world view implications.   
      
   I think there could be some merit in looking at acceleration as an   
   absolute, and the fact that we can "feel" it is the only relevant   
   connection between physics and conscience that I can think of...   
   But I am speculating now.   
      
   Julio   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)