>You can usually tell the difference by taking a different
>point of view, or shifting the position of the light (which
>amounts to much the same thing), and comparing the
>results.
What are you looking for when you compare results of
different points of view?
>It matters if and when it makes a difference to us, not
>otherwise.
When we think it makes a difference or when it actually
does? (not necessarily the same thing)
-- David McFadzean david@lucifer.com Memetic Engineer http://www.lucifer.com/~david/ Church of Virus http://www.lucifer.com/virus/