I'll bite.
No matter where a ball sits on the table and you stand in one place looking at it, these points are always located in the same observable, repeatable, recognizable (in the context of CTE, this is deemed "objective") places on the ball. As your eye position moves the physical locations of these points on the ball change, but the perception of them remains the same.
Ghostball, in contrast, has a fixed contact point on the OB. That point always falls on the equator, and its placement left-to-right must be estimated from every eye position. CTE merely uses the objective data to find the correct ball-pocketing line instead of estimating the contact point.
off topic
mohrt i gave you a greenie for an objective answer to duckie without the this is better kind of responces he sometimes gets....:thumbup:
sorry guys
carry on
im enjoying this thread...