The Auditors of Reality are fictional godlike beings in Terry Pratchett's Discworld series of fantasy novels. They are one of the major recurring villains in the series, although they lack the necessary imagination to be truly evil.
The Audit of Reality are supernatural entities and the celestial bureaucrats. They make sure that gravity works, file the appropriate paperwork for each chemical reaction, and so forth. The Auditors hate life, because it's messy and unpredictable, which makes them fall behind on their paperwork; they much prefer barren balls of rock orbit star in neat, easily predictable elliptical paths. They really hate human and other sentient beings, who are much more messy and unpredictable than other living things, and they have attempted more than once to deal with this 'problem'.
One could almost call the Auditors collaborating "gods" of physics, except that the discworld definition of "god" does not include them, as they do not derive their existence from human belief. Indeed, the Auditors find belief inherently repulsive. Belief and imagination are the ultimate mess: They shape and reform the physical world in almost infinitely varied and complex ways. Where the Auditors see a fragment of carbonaceous chondrite heated by the friction of atmospheric entry, imagination sees a falling star. Where the Auditors see a random cleft in granite, imagination sees a dark cave haunted by monsters. To the Auditors, this is infuriating; after all, how can one catalogue or quantify a dragon, a basilisk, poetry or Justice? The Auditors existed long before humans and would be quite happy to exist long after them.
Fortunately for humanity and every other living thing, the Auditors can't simply wipe out life, because that's against the Rules; the Auditors can't break the Rules because, in a certain sense, they are the Rules. Unfortunately, a loophole exists in the Rules which allows the Auditors to influence humans into doing what they cannot do directly; in several of the Discworld novels, the Auditors hire humans to perform tasks that will make the world less "messy", paying them with the gold they created out of thin air using their abilities to manipulate reality.
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