A person who believes in or practices casualism, the philosophical view that events happen by chance rather than being predetermined or caused by prior events.
From casual (happening by chance) + -ist (one who practices or believes in); casual ultimately comes from Latin casus (chance, accident).
Casualists and determinists have battled for centuries—casualists say the universe is fundamentally random and open, while determinists say everything flows inevitably from prior causes, and modern quantum physics suggests casualists might actually be right.
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