The manifold structural difference of the torroid to the sphere is the aspect of time/space being obscured by the characteristic of shape function.

It functions differently in the aspect character of the function of In and out. Outside the spheroid the horizon is hidden relatively to the aspect of height. Meaning, the higher, the more or greater the field of vision; to the limitations of sight and the apparent fall off point of horizon the sphere is given to.

The circle requires 4 vantage points to acquire the totality of its surface. The spheroid 8.

However, within the spheroid or 2d circle. The whole aspect of said surface is apparent to a central location .

The torrus further hides the functions of timespace as it acts as a circulating delimiter in both the aspects of in and out. The 4 vantage points are circulated and enforced by a structure of form/object function.