Mass propaganda discovered that its audience was ready at all times to believe the worst, no matter how absurd, and did not particularly object to being deceived because it held every statement to be a lie anyhow. The totalitarian mass leaders based their propaganda on the correct psychological assumption that, under such conditions, one could make people believe the most fantastic statements one day, and trust if the next day they were given irrefutable proof of their falsehood, they would take refuge in cynicism; instead of deserting the leaders who had lied to them, they would protest that they had known all along the statement was a lie and would admire the leaders for their superior tactical cleverness.

Hannah Arendt (1906-1975) German-American philosopher, political theorist

The Origins of Totalitarianism, Part 3, ch. 11 “The Totalitarian Movement,” sec. 2 (1951)
    (Source)