Totalitarian governments exert total control over citizens' lives, whereas authoritarian governments restrict political challenges to the ruler.
Totalitarian governments are characterized by total control and regulation of all aspects of citizens' lives and fortunes, aiming to suppress any form of dissent through repressive measures. In contrast, authoritarian governments also restrict freedoms and prohibit popular participation in governance but do not exert as much control over every aspect of citizens' lives.
One key difference is that totalitarian regimes seek to regulate and control all aspects of citizens' lives, while authoritarian systems may allow certain freedoms in nonpolitical life but do not permit political challenges to the ruler.
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