>>13491636To allow for the formation of the ellipsoid joints, for the fingers, and the hinge joint, for the thumb, that ultimately forms the wrist.
Other mammals and birds demonstrate an elongated set of forelimbs though only higher primates are capable of phalange opposition, e.g. moving your thumb to your pinky. Hence, humans have compromised the formation of 'two elbows' as the wrist joint was a greater evolutionary advantage.
Having no joints makes you a fucking table or an octopus.
