Will hair bones be weighted for physics?

Actually, yes.

It already is, isn't it?

Yeah, so we're working on that with the female and the long hair, like they brought up earlier. They're still working on the systems and fine-tuning how the simulation is going to go, like going back to resting positions and things like that, and also testing with zero-G, like hair in space. I don't think we see many games doing that. So we've got to make sure our hair, and this translates down to clothing too, like you're in gravity in a physics grid, and you leave the physics grid, and then suddenly your hair is just floating around.

Like on-ship zero G, because I'm thinking you go into EVA without a helmet, you'd just die.

You've got to think, even if you die out in space, you're still out there. You've got to move. Your physics still have to work.