Theory
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A theory is an explanation of facts.
The pope wrote:
- A theory is a metascientific elaboration, distinct from the results of observation but consistent with them. By means of it a series of independent data and facts can be related and interpreted in a unified explanation. A theory's validity depends on whether or not it can be verified, it is constantly tested against the facts; wherever it can no longer explain the latter, it shows its limitations and unsuitability. It must then be rethought. [1]
The term "theory" is often used outside of the realm of natural science, such as in music theory, number theory, or Marxist theory.