Concerning roundworld

DISCWORLD IS REAL. It's the way worlds should work. Admittedly, it is flat and goes through space on the backs of four elephants which stand on the shell of a giant turtle, but consider the alternatives. Consider, for example, a globular world, a mere crust upon an inferno of molten rock and iron. An accidental world, made of the wreckage of old stars, the home of life which, nevertheless, in a most unhomely fashion, is regularly scythed from its surface by ice, gas, inundation or falling rocks travelling at 20,000 miles an hour.

And this one starts with desks.

This is the desk of a professional. It is clear that their job is their life. There are... human touches, but these are the human touches that strict usage allows in a chilly world of duty and routine.

For something to exist, it has to be observed.

or something to exist, it has to have a position in time and space. And this explains why nine-tenths of the mass of the universe is unaccounted for.

Nine-tenths of the universe is the knowledge of the position and direction of everything in the other tenth. Every atom has its biography, every star its file, every chemical exchange its equivalent of the inspector with a clipboard. It is unaccounted for because it is doing the accounting for the rest of it, and you cannot see the back of your own head.1

Nine-tenths of the universe, in fact, is the paperwork.

"Good morning, Your Grace," said the industrious treadler.

The voice was higher pitched that Vimes expected and he realized that, most unusually, the young man in the pit was in fact a young woman. It wasn't entirely unexpected -- the Assassins' Guild was aware that women were at least equal to their brothers when it came to inventive killing -- but it nevertheless changed the situation somewhat.

"Good grief, why not?"

"Couldn't say, sir," said Miss Wiggs. Her patient struggles had brought her to the edge of the pit, and now she was finding that the brickwork was in very good repair, quite slippery, and offered no handholds. Vimes knew this, because he'd spent several hours one afternoon carefully arranging that this should be so.