You insist that there is something a machine cannot do. If you tell me precisely what it is a machine cannot do, then I can always make a machine which will do just that.
John Von NeumannRead
The sciences do not try to explain, they hardly even try to interpret, they mainly make models. By a model is meant a mathematical construct which, with the addition of certain verbal interpretations, describes observed phenomena. The justification of such a mathematical construct is solely and precisely that it is expected to work-that is, correctly to describe phenomena from a reasonably wide area.
Interpretation
What this quote means
Scientific models aim to describe phenomena rather than explain them in absolute terms.
In this quote, John Von Neumann emphasizes that the primary function of scientific models is not to provide explanations or interpretations of the underlying reality, but to effectively describe and predict observed phenomena. He highlights that the value of a mathematical model is determined by its predictive power and its ability to work across various scenarios, thus illustrating the pragmatic nature of scientific inquiry.
Themes
ScienceModelsMathematicsPhenomenaInterpretation
In practice
Example use cases
In a scientific conference discussing the role of mathematics in science.
More from John Von Neumann
All quotes →Anyone who attempts to generate random numbers by deterministic means is, of course, living in a state of sin.
John Von NeumannRead
Any one who considers arithmetical methods of producing random digits is, of course, in a state of sin. For, as has been pointed out several times, there is no such thing as a random number - there are only methods to produce random numbers, and a strict arithmetic procedure of course is not such a method.
John Von NeumannRead
It would appear that we have reached the limits of what it is possible to achieve with computer technology, although one should be careful with such statements, as they tend to sound pretty silly in 5 years.
John Von NeumannRead
Technological possibilities are irresistible to man. If man can go to the moon, he will. If he can control the climate, he will.
John Von NeumannRead
I would like to make a confession which may seem immoral: I do not believe absolutely in Hilbert space any more.
John Von NeumannRead
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