On 7/27/2013 11:17 AM, Warp wrote:
>
> But since the question was "why don't we see objects moving the fourth
> dimension", talking about GR was more illustrative because according
> to it, the apparent acceleration caused by gravity is in fact caused by
> movement in the fourth dimension (and the nonlinearity of spacetime.)
>

A fair enough point.

Not really sure that I agree with your characterization of GR, as I 
don't see how GR involves more "movement in the 4th dimension" than SR. 
  For the purposes of the current conversation it's probably not 
relevant though.

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