Tree view

[Brent Turcotte <brentt@xxxxxxxxxxxxx>]

One view to consider for zigzag would be a tree view.
A link among a dimension would be shown as a line of a
particular color.  That way all connections to and from
a particular cell can be viewed in all dimensions.

How this would displayed on a screen is a difficult matter.
How could you get a lot on the screen without massive 
overcrowding and massive whitespace?  Loops might be
difficult to display as well.