This paper from a modern military strategist, while difficult to read, indicates Boyd's belief that strategy depends on a cycle of observations, analysis, and actions which alternately build and tear down a model of reality constructed from simpler components.

From the abstract: To comprehend and cope with our environment we develop mental patterns or concepts of meaning. The purpose of this paper is to sketch out how we destroy and create these patterns to permit us to both shape and be shaped by a changing environment.

[from Wikipedia]

In Destruction & Creation, Boyd attempts to provide a philosophical  foundation for his theories on warfare. In it he integrates G�del's Incompleteness Theorem, Heisenberg's Uncertainty Principle, and the Second Law of Thermodynamics to provide a context and rationale for the development of the OODA Loop.

Boyd inferred the following from each of these theories:

    * G�del's Incompleteness Theorem: any logical model of reality is incomplete (and possibly inconsistent) and must be continuously refined/adapted in the face of new observations.
    * Heisenberg's Uncertainty Principle: there is a limit on our ability to observe reality with precision.
    * Second Law of Thermodynamics: The entropy of any closed system always tends to increase, and thus the nature of any given system is continuously changing even as efforts are directed toward maintaining it in its original form.

From this set of considerations, Boyd concluded that to maintain an accurate or effective grasp of reality one must undergo a continuous cycle of interaction with the environment geared to assessing its constant changes. Boyd, though he was hardly the first to do so, then expanded Darwin's theory of evolution, suggesting that natural selection applies not only in biological but also in social contexts (such as the survival of nations during war or businesses in free market competition). Integrating these two concepts, he stated that the decision cycle was the central mechanism of adaptation (in a social context) and that increasing one's own rate and accuracy of assessment vis-a-vis one's counterpart's rate and accuracy of assessment provides a substantial advantage in war or other forms of competition. [JLJ - such as playing a game]