Totalitarianism (or totalitarian rule) is a political system where the state recognizes no limits to its authority and strives to regulate every aspect of public and private life wherever feasible. Totalitarian regimes stay in political power through an all-encompassing propaganda campaign, which is disseminated through the state-controlled mass media, a single party that is often marked by political repression, personality cultism, control over the economy, regulation and restriction of speech, mass surveillance, and widespread use of terror.
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Authoritarianism is characterized by highly concentrated, and centralized power maintained by political repression and the exclusion of potential challengers. It uses political parties and mass organizations to mobilize people around the goals of the regime.
Authoritarianism emphasizes arbitrary law rather than the rule of law, it often includes election rigging, political decisions being made by a select group of officials behind closed doors, a bureaucracy that sometimes operates independently of rules, which does not properly supervise elected officials, and fails to serve the concerns of the constituencies they purportedly serve.
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