Ockham's razor

Prefer simpler explanations

Ockham's razor is a principle of reasoning: when multiple explanations fit the facts equally well, prefer the simplest one.

Named for the medieval philosopher William of Ockham, it counsels against multiplying assumptions unnecessarily.

The razor metaphor suggests cutting away excess: Ockham's razor says the simpler theory is probably right.

Also spelled Occam's razor.

methodology

parsimony

Excessive frugality with resources

principle · economy · sufficiency · plurality · entities · assumptions · explanation · hypothesis · inference · postulate

epistemology

empiricism

Knowledge through observation

deduction · induction · abduction · validity · soundness · syllogism · premise · proposition · coherence · plausibility

application

diagnostics

Methods identifying problems

elegance · probability · likelihood · Bayesian

Categories
Opposites
explanatory parsimony

Ockham's razorovercomplication

Making something unnecessarily complex

epicycles · overfitting · maximalism · overthinking · overengineering

intellectual methodology

Ockham's razormagical thinking

Believing thoughts affect unrelated events

epistemic methodology

Ockham's razordeus ex machina

Unlikely last-minute story rescue

unfalsifiability

Family

razor, razors, razored, razoring

Familiarity
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Used worldwide · Timeless · Abstract · Rated G