**Our** space is (3+1)D.

Most of us seem to assume space is infinite and fairly flat, and if you are somewhat myopic (like our 2D friends) this is how it seems.

General relativity: space's **not** flat.

- the
**large scale**shape is fairly flat (±0.5%), - fits with the common belief,
- but also with the
**3-torus**(which you get by taking a die and identify opposite faces - just as we did for the 2D-torus).

However, anomalities in the background radiation makes the Poincaré sphere a candidate

(the absolutely coolest 3D-space

has a 120-fold symmetry!!

Build one for yourself by taking a dodecahedron and identify opposite faces.)

Bjørn Ian Dundas