Fact: Geometrically, circles do not have edges, therefore spheres do not have edges.
Fact: When aiming one pool ball into another (unless one or the other is airborne), it's the horizontal circumference of the balls that actually collide/touch on impact. It is this same horizontal circumference that is used for contact point aiming, as well as fractional aiming, CTE, etc... everything except ghostball.
Hiwever, when we look at an ob we see a 2D circle, not a sphere. We capture two perspectives of a plain circle, one 2D image from each eye. The brain then creates the perception of 3D. It's not really 3D because we can't actually see the other side of the ball, which means we aren't using a horizontal circumference at all. We are using a horizontal diameter.
Aiming, except for ghostball, involves picking reference points located on this horizontal diameter, this straight line spanning the width of the ball. The top and bottom portion of the ball is irrelevant when it comes to aiming. We aim through the cb to a point somewhere along the horizontal diameter of the ob.
These horizontal diameters are simple straight lines as far as your brain is concerned. Each line is 2.25" wide. Each line has a left edge point, a center point, and a right edge point, and can easily be divided into quarters pieces or whatever.
The edges of a ball then, according to how we see, not according to standard geometry, are the end points of the straight line that represents the diameter of the 2D circle we are looking at.
Fact: When aiming one pool ball into another (unless one or the other is airborne), it's the horizontal circumference of the balls that actually collide/touch on impact. It is this same horizontal circumference that is used for contact point aiming, as well as fractional aiming, CTE, etc... everything except ghostball.
Hiwever, when we look at an ob we see a 2D circle, not a sphere. We capture two perspectives of a plain circle, one 2D image from each eye. The brain then creates the perception of 3D. It's not really 3D because we can't actually see the other side of the ball, which means we aren't using a horizontal circumference at all. We are using a horizontal diameter.
Aiming, except for ghostball, involves picking reference points located on this horizontal diameter, this straight line spanning the width of the ball. The top and bottom portion of the ball is irrelevant when it comes to aiming. We aim through the cb to a point somewhere along the horizontal diameter of the ob.
These horizontal diameters are simple straight lines as far as your brain is concerned. Each line is 2.25" wide. Each line has a left edge point, a center point, and a right edge point, and can easily be divided into quarters pieces or whatever.
The edges of a ball then, according to how we see, not according to standard geometry, are the end points of the straight line that represents the diameter of the 2D circle we are looking at.