Yankee Mackem
Striker
It's not f***ing flat.
It could be, but only in the sense of a Calabi-Yau manifold. The flat earth conceptualisation can be explained by a hyperelliptic surface of a brane interacting between higher dimensional space, and, potentially, other branes operating in other dimensions. These could influence our our brane and thus introduce effects percieved in more standard cosmological models.