What drives a seemingly ordinary person to commit unspeakable atrocities? This question took center stage on April 11th, 1961, as Adolf Eichmann faced trial in Jerusalem for crimes against humanity. Eichmann, a Nazi official who organized the transport of over 1.5 million Jews to concentration camps, appeared more like a bored bureaucrat than a sadistic killer. This disconnect sparked a profound revelation for philosopher Hannah Arendt, who termed the phenomenon "the banality of evil."