Oh, this is lovely. I can't even begin to call out all the specific bits that I adore, because there are too many of them.

I really like the way you play with flow and shape, with line and compass and vector calculation, and how you show River's passage through days and the space around her with such windings which echoes with a hint of nominative determinism in a way I'd never thought about! And then you take that and compare it to how she touches the thoughts of those around her, and how she comprehends the differences between their perceptions and her own -- this is a truly visionary fic, Fi, and I really love it.

Thank you so much for such a beautiful story.