The constant low-intensity broadcast suppresses the ability of most people to evaluate information critically, making the omnipresent regime propaganda much more effective. In addition, twice a day an intense signal relieves mental stresses caused by the disconnect between the propaganda and the observed reality by inducing euphoria in the susceptible majority, and intense headaches in others who are immune to the signal's coercive power. Those are the only sober-thinking people in the country, including both the underground degens and the Fathers themselves.