P3D time and 4d

[Tom Trombley <tatrom@xxxxxxxx>]

>From: John W Roberts

>The 2D "impossible images" take advantages of the fact that there's only
>one view, in order to fool the human perceptual system in an interesting
>way. So - can anyone think of stereo (2-view) images that take advantage
>of the fact that there are only two views, to fool the human perceptual
>system in interesting ways?

A photograph is a frozen moment in time. A stereograph is a frozen moment
in time but it doesn't have to be. Because it is two photographs and they
can differ. Fritz M. Brown (digest 3761) noted the movement of clouds
changed their position relative to a prison (escape is possible). Spacetime
opens up with the fusion of the two images and produces dislocations
perpendicular to the picture plane.

Vincent Chan (digest 3760) noted waving flags (give) the impression of
movement.
This is the action of retinal rivalry creating a two frame animation loop.

Here is a 4th dimensional field to play in. For the sake of argument your
could say that trick stereographs work because of the flexiblity of the 4th
dimensional tying of knots in space, no strings attached.

Tom