What is mechanistic determinism by freud?

Mechanistic determinism, as proposed by Freud, suggests that human behavior is determined by internal psychological forces and drives, particularly the unconscious mind. Freud argued that these unconscious drives, such as the id, ego, and superego, influence our thoughts, emotions, and actions. Essentially, mechanistic determinism posits that our behavior is not entirely within our conscious control but is rather shaped by these unconscious forces.