@Galactic Navy Officer You're a bit wrong about slings and spears. To be precise, we specificaly evolved as walking catapults, from our toes to our fingers through all what's between. It's particularly true when you look at baseball pitchers : no other animals (even gorillas, chimps, etc) have such control over the momentum of projectiles. Even babies show innate instinct to throw things before even knowing how to walk or speak properly.
tl;fr: No needs to calculate at conscious level, our body and instinct do it before we're even aware of letting go of the projectile.
tl;fr: No needs to calculate at conscious level, our body and instinct do it before we're even aware of letting go of the projectile.
