Ha! I actually stumbled upon this wicked society just a few weeks ago reading about them on Wikipedia. Heard about them before, but never actually paid any attention.
There was one thing in particular that caught my attention of just being contradictory (oh god, there's more but lets stop there :D)
Statement 1: "disc of Earth accelerates upward at 32 feet per second squared"
Statement 2: "GPS devices are rigged to make airplane pilots think they are flying in straight lines around a sphere when they are actually flying in circles above a disc"
Question: Would this mean that the airplanes are also having some kind of "hidden" propulsion to keep them at the right height and not getting "caught" up by the disc? :D
Oh I know. It gets crazy. I particularly loved NASA's role in protecting us from scaling the 150 foot ice wall and subsequent plummeting into eternity.
Didn't think of that, that's just so beautifully made :D
I think someone has read to many of the Discworld books... but there the water just goes over the edge of the disc... pass the elephants and the turtle.