In trying to see Hodges' model anew, which is quite a challenge after four decades; what of the model's structure?
It is easy to get carried away with mathematical terminology:
One line, add another, and they intersect, at a 90 degree right angle. So is centeredness to be found at the intersection point?
If I'm tying myself up in knots well there's another possibility! 😉
As a whole it appears the axes of the model are a manifold and not - in the center?
What do you think?
See also: 'What Is a Manifold?'