All These people debating whether the world is round or flat... I recently read an article about this rogue rocket builder who blasted himself up to moderately impressive heights all the while believing in the flatness of the world. If such people can believe the world is flat, I would like to argue that it is no less likely that the world is cubical.
You might ask, if the world is cubical, then where are it's edges? I would firstly reply that the same criticism is true of plain old flat-worldists. To be more forthcoming, though, I would propose that distance is scaled logarithmically (rather than linearly) from the center-point of each side of the World-Cube. The natural and progressive orders of magnitude are such that the relative distances between the center-point and any random point in a given square appear to the naked eye to follow a slope corresponding to the curve of this log function. Junctures between sides of the square appear blended into parallelism in consequence of this sloping effect, rendering the underlying cubical world framework spherical to the eye and to the eye alone.
What proof is there that the world is in fact cubical in the manner so far theoretically described? It all ties back to the pyramids of Egypt, and aliens. I know what you are thinking, the pyramids are triangular, not cubical. But the pyramids are made of blocks which as an aggregate appear in form to be something different than it's constituent parts. Just as the constituent parts of the world-cube, the log-squares, aggregate into something that appears formally different from its parts. Aliens built the pyramids, as is commonly attested, so it is no great leap of deduction to infer that aliens also built the illusion of sphericality underlying the world-cube.