On Thu, 16 May 2002, John Cowan wrote:
> Invent Yourself scripsit:
>
> > x1 is the parallax of x2 as seen by x3 who moves to x4 from x5
>
> I can talk about
> the parallax of an object on the opposite wall from one side of a room
> vs. the other side, without postulating an observer who actually moves
> across the room.
vu'enai casnu le si'o broda ga'a zi'o