The familiar three-dimensionality is one possible structure of space. Many others are possible, too. Although the expression “possible” may be misleading here, since every possible structure is actually existing. No matter whether or not it is presently realized. Like a program, which exists, no matter that it is currently active — or not.

Space embraces all possible structures, as a framework, so to speak, allowing each structure to appear. Nonetheless, space does never appear without any kind of structure.

In our system structures may be placed, roughly speaking, somewhere between space and thing. Unlike those they are flexible and dynamic.