Those aren't the only two options! It's a cultural pattern. It doesn't apply on reflection -- if you're an Austrian soldier and Momčilo Gavrić points his gun at you, you shoot him -- but it comes up on the quick first pass.
Like tomatoes. Tomatoes are vegetables because they function as vegetables: you put them on sandwiches and in salads, and you don't eat them plain or put them in fruit salad. Then you think about it and realize that tomatoes are technically fruit. Or like that last sentence: tomatoes are the classic example of a vegetable that's actually a fruit, but come to think of it, cucumbers do the same thing, and sometimes you put apples or pears in salads...
This is a new thread to discuss Eliezer Yudkowsky’s Harry Potter and the Methods of Rationality and anything related to it. This thread is intended for discussing chapter 117.
Plans for next chapter release:
There is a site dedicated to the story at hpmor.com, which is now the place to go to find the authors notes and all sorts of other goodies. AdeleneDawner has kept an archive of Author’s Notes. (This goes up to the notes for chapter 76, and is now not updating. The authors notes from chapter 77 onwards are on hpmor.com.)