Occam's Razor
Simplest explanation
Occam's Razor is a problem-solving principle that states, among competing hypotheses, the one with the fewest assumptions should be selected. It serves as a useful mental model for making rapid decisions and establishing truths without empirical evidence. The principle is based on the idea that simple theories are easier to verify and simple solutions are easier to execute.
- Among competing hypotheses, the one with the fewest assumptions should be selected.
- Simple theories are easier to verify.
- Simple solutions are easier to execute.
- Identify Competing HypothesesList all possible explanations for a phenomenon or problem. Consider multiple perspectives and gather relevant information.Pro tipAvoid limiting yourself to a single hypothesis or explanation.WarningBe cautious of confirmation bias and the tendency to favor a particular hypothesis.
- Evaluate AssumptionsAssess each hypothesis and identify the underlying assumptions. Consider the number of assumptions and their complexity.Pro tipLook for hypotheses with fewer, more straightforward assumptions.WarningBe aware that simplicity can sometimes be misleading.
- Select the Simplest HypothesisChoose the hypothesis with the fewest assumptions that still explains the phenomenon or problem. Consider the principle of minimum energy and the idea that simple solutions are often more efficient.Pro tipAvoid overcomplicating the solution or introducing unnecessary variables.WarningBe prepared to revise your hypothesis if new information becomes available.
Albert Einstein's theory of special relativity is an example of Occam's Razor in action. Einstein's theory was simpler and more elegant than competing theories, and it has been widely accepted as a fundamental principle of modern physics.
In medicine, Occam's Razor is often used to diagnose patients. For example, a doctor might consider a patient's symptoms and medical history to determine the most likely cause of their illness.
The concept of Occam's Razor is credited to William of Ockham, a 14th-century friar, philosopher, and theologian. The idea has been expanded upon by various thinkers, including Aristotle and Robert Grosseteste. Today, Occam's Razor is an established mental model used in various fields, including science, medicine, and philosophy.