Why is totalitarianism considered an extreme form of authoritarianism?

Authoritarianism restricts political freedoms but leaves private life relatively autonomous, while totalitarianism extends control into social and personal spheres.

Authoritarian regimes centralize political power but may tolerate independent institutions, while totalitarian regimes attempt to absorb or eliminate them.

Authoritarian governments limit dissent in politics, while totalitarian governments demand ideological conformity through propaganda and surveillance.

Totalitarian regimes typically seek to mobilize citizens in support of state goals, whereas authoritarian regimes often emphasize passive obedience rather than active participation.