We (sort of) have dozens if not hundreds extra body parts - muscles. Most people cannot move their ears or nostrils separately, have limited mimics, cannot do t

We (sort of) have dozens if not hundreds extra body parts - muscles. Most people cannot move their ears or nostrils separately, have limited mimics, cannot do tricks with poker chips or show someone their ring finger without securing their pinky somehow. That’s because we treat our groups of muscles as a whole. It takes time to learn to separate them and counteract tensions. Maybe it’s the same process?