What Is in the Middle of All the Bands Is Solid?

Plato's myth of er is certainly pythagorean in its general character. We do not hear of spheres, but of the lips of concentric whirls fitted into one another like a nest of boxes. It does not appear either that the solid circle which surrounds all the crowns is to be regarded as spherical. In the timaeus, there are no spheres either, but bands or strips crossing each other at an angle. That's just like the general, you know, kind of reaffirming the the shape of the world that he's describing. And the the mention, again, of necessity guiding all things at the centre of this a.