“What're quantum mechanics?"  "I don't know. People who repair quantums, I suppose.” "Granny Weatherwax wouldn’t know what a pattern of quantum inevitability was if she found it eating her dinner. If you mentioned the words ‘paradigm of space-time’ to her she’d just say ‘What?’ But that didn’t mean she was ignorant. It just meant that she didn’t have truck with words, especially gibberish.". Did Terry Pratchett write about quantum mechanics?