I believe the answer is: self fulfilling prophecy
Self fulfilling prophecy refers to the prediction that somehow makes itself become true/fulfilled. Other example would be when a person is inherently believe that he is somehow intellectually inferior and cannot do anything to improve their get. This often lead him to not making any efforts since he believes it pointless, which lead to self-fulfilling his initial opinion about himself.
A receiver's response to a sender's message is called feedback.
Regular citizens
hope this helps
Answer:
It foreshadows the ominous actions which will occur later within the play. It also distinguishes the witches as evil forces.
The weather may be a fallacy, it mirrors the moods of the characters during a given scene. The intensity of the thunder and lightning mirrors the intensity of emotion later within the act.