A person who believes that all events have causes or who supports the philosophical doctrine of causation.
From 'causation' (the act of causing) plus the suffix '-ist' (one who believes in or practices). Causation comes from Latin 'causa' (cause) plus '-tion' (the act of). The suffix '-ist' originates from Greek '-istēs', indicating a follower of a doctrine.
This word reveals a fundamental philosophical divide: whether the universe is fundamentally deterministic (everything has a cause) or whether randomness and free will exist. Medieval philosophers debated causationism intensely when reconciling human free will with divine omniscience!
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