Why do people study cybernetics?

People study cybernetics to gain knowledge with which to improve mechanical things. Cybernetics is the scientific study of automatic control and communication in the functions of animals and in mechanical and electrical systems. It is chiefly concerned with physiological and psychological mechanics of animal behaviour.

These methods have been used in deciphering garbled messages, in anti-aircraft gunnery, in constructing artificial limbs, in building computers and in making models of the human brain.