Booting the camera so it is quickly available? Sure, that is a user-facing benefit. My immediate hunch is rather that they love tracking emotional responses su

Booting the camera so it is quickly available? Sure, that is a user-facing benefit. My immediate hunch is rather that they love tracking emotional responses such as widening eyes as people interact with content. Because knowing the true emotional responses instead of just hitting "like" on a post would be extremely valuable data.