Evidence Quote by Richard P. Feynman
““If someone were to propose that the planets go around the sun because all planet matter has a kind of tendency for movement, a kind of motility, let us call it an ‘oomph,’ this theory could explain a number of other phenomena as well. So this is a good theory, is it not? No. It is nowhere near as good as the proposition that the planets move around the sun under the influence of a central force which varies exactly inversely as the square of the distance from the center. The second theory is better because it is so specific; it is so obviously unlikely to be the result of chance. It is so definite that the barest error in the movement can show that it is wrong; but the planets could wobble all over the place, and, according to the first theory, you could say, ‘Well, that is the funny behavior of the ‘oomph.””
About This Quote
Source Lecture: The Character of Physical Law, 1965
Feynman argues that a theory based on a vague “oomph” is inferior to the precise inverse‑square law of gravitation, which makes testable, specific predictions.
In simple terms: Precise laws beat vague ideas.
Prefer specific, testable explanations.
Themes
Mood
Type
When to use this quote
- teaching physics
- scientific research
- critical thinking
Key Concepts
Questions to Reflect On
- Why prefer precise laws over vague forces?
- How do we test such theories?
Complex phenomena may need more than simple inverse‑square models.