Destruction & Creation

“There are two ways in which we can develop and manipulate mental concepts to represent observed reality: we can start from a comprehensive whole and break it down to its particulars or we can start with the particulars and build towards a comprehensive whole.[28,24] Saying it another way, but in a related sense, we can go from the general-to-specific or from the specific-to-general. A little reflection here reveals that deduction is related to proceeding from the general-to-specific while induction is related to proceeding from the specific-to-general. In following this line of thought, can we think of other activities that are related to these two opposing ideas? Is not analysis related to proceeding from the general-to-specific? Is not synthesis, the opposite of analysis, related to proceeding from the specific-to-general? Putting all this together: Can we not say that general-to-specific is related to both deduction and analysis, while specific-to-general is related to induction and synthesis?

John Richard Boyd, “Destruction and Creation.” US Army Command and General Staff College. September 3, 1976.
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See also: OODA Loop.