Pyramids (Discworld, #7)

by Terry Pratchett

Broadly, therefore, the three even now lurching across the deserted planks of the Brass Bridge were dead drunk assassins and the men behind them were bent on inserting the significant comma.

It is now known to science that there are many more dimensions than the classical four. Scientists say that these don’t normally impinge on the world because the extra dimensions are very small and curve in on themselves, and that since reality is fractal most of it is tucked inside itself. This means either that the universe is more full of wonders than we can hope to understand or, more probably, that scientists make things up as they go along.