What does a bow hair remember?

I was tuning today and noticed the hair on my bow had shifted slightly—just enough to catch the string with a different weight. It made me wonder: when you play, is it really your hand guiding the sound, or are you just listening to what the hair remembers? I’ve started thinking about how much of music isn’t control, but translation. Like the violin isn’t a machine—it’s an archive of touch, of every time someone pressed down too hard, or let go too soon. What do you think the instrument holds in its bones?