It's big, very very big but... 1. Big Bang Cosmology says that universe however big must be finite, if so, then A. Can the universe have spin. B. Can it have translatory motion. C. Can it have inertia. D. Can it have net non zero energy. A and B certainly must be zero, because there is no FoR outside the universe, in my opinion C must also be zero because inertia is with respect to resistance to external force and there is no external force.