Why eight (Transbellum)

The 8 uchronies arise from the fact that only 3 spatial dimensions remained extended in our universe. All the other dimensions collapsed to Plank scale remnants. If we express the number of allowed string vibration states in a quantum-mechanical vacuum for each of the three extended dimensions as $$x \cdot y \cdot z$$ then the number n turns out to be the vacuum energy for our universe $$n = x \cdot y \cdot z$$.

The eight divisors of n correspond to the eight possible three dimensional universes attached to the 10-brane that our universe is attached to: $$\left\{ 1, \ x, \ y, \ z, \ x y, \ x z, \ y z, \ n \right\}$$