Occam's Razor
Principle attributed to William of Ockham, a 14th-century English friar and philosopher, who used it to trim unnecessary assumptions in logical argument. · Ordinatio, Sentence Commentary (1319)
Occam's Razor is a principle of parsimony suggesting that, when competing explanations, the one with the fewest assumptions should be preferred.
Core Concepts
The Problem
In reasoning, people often add unnecessary complexity; how to choose among competing theories?
The Claim
Prefer the simplest explanation that fits the evidence.
Key Evidence
- •It has been a guiding principle in science, philosophy, and logic for centuries, helping eliminate superfluous hypotheses.
- •Most scientific breakthroughs, such as heliocentrism over Ptolemaic epicycles, align with its parsimonious approach.
Practical Implication
It promotes efficiency in reasoning but is not a proof; it can be misapplied when complexity is justified.
Nuance & Limits
The razor does not guarantee truth — sometimes the correct explanation is complex. It is a heuristic, not a law. Its misuse can lead to oversimplification and the dismissal of valid nuanced positions.
Source Material
Citation Density
Widely cited across philosophy, science, and popular culture.
Gaps
- ⚠ The razor does not specify how to measure simplicity or when complexity is warranted.
- ⚠ Its historical formulation varied; Ockham's original phrasing differs from modern interpretations.
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