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The only relevant test of the validity of a hypothesis is comparison of prediction with experience.
Milton Friedman
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Interpretation

What this quote means

A hypothesis is validated by how well its predictions align with actual experience.

Milton Friedman emphasizes that the true test of any hypothesis lies in its ability to make accurate predictions that match real-world experiences. This highlights the importance of empirical evidence in evaluating theories and the need for practical outcomes over mere theoretical consistency.

Themes

HypothesisPredictionExperienceValidityScience

In practice

Example use cases

This quote can be used in a science class to explain how scientific methods validate hypotheses.

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The strongest argument for free enterprise is that it prevents anybody from having too much power. Whether that person is a government official, a trade union official, or a business executive. If forces them to put up or shut up. They either have to deliver the goods, produce something that people are willing to pay for, are willing to buy, or else they have to go into a different business.
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