i love terry pratchett
The most notable nation to lie on the Rim (it actually juts slightly over it) is Krull, an island kingdom whose economy is largely based on the capture and salvage of nautical wreckage as it heads towards the waterfall. Due to its unique position, Krull is one of the Disc's main centres of astronomical and astrological learning; indeed until recently, its high priest was also its chief astronomer. Krullians are noted for their habitual nervousness and fatalism, the product of spending their lives overlooking a bottomless black abyss of infinity. On the Disc, the phrase "being on edge" is a reference to the Krullians