Empty space consists of z particles, with at their centers a premordial z-spot (zero space-time spot) where time stands still and dimensions are zero.
Z-domains are bound by the z-force, causing an attractive force when the distance between z-domains is increased and a repulsive force when the distance is decreased.
This balance between opposite forces give space its elastic properties.
The spin of neighboring z-domains is preferably opposite: left next to right etcetera. Consequently, the spin of z-domains causes a grid structure of space as shown below.
Figure: Empty space, filled with rotating z particles.
The distance between z-spots is in the magnitude of of 10^-24 m (see ETT formula 77) and thus far smaller than the smallest known elementary particles.