Abstract
When things change quickly, waiting for complete information means acting too late. The OODA loop treats a decision as one turn of a cycle. You observe what's happening, orient (work out what it means), decide, act, and then observe what your action did.
John Boyd, a fighter pilot and military strategist, argued that whoever runs this loop faster and more accurately gets the upper hand. He put orientation at the centre. What you already believe shapes what you see, so updating those beliefs often helps more than collecting more data.
Method
- 01
Observe
Take in what's happening now, including the results of your last move and anything you didn't expect.
- 02
Orient
Work out what it means. Notice how your experience and assumptions colour your reading, and update them where the facts disagree.
- 03
Decide
Choose what to do. Treat it as a guess you're about to test.
- 04
Act
Do it soon enough that the situation hasn't already moved on.
- 05
Go round again
Whatever happened after you acted is your next observation. Keep going and try to make each loop shorter.
When to use it
- The situation changes faster than you can fully analyse it.
- You're up against others who are adapting too, such as competitors in a market.
- You'd learn more from many small decisions than from one big one.
Common pitfalls
- Skipping orientation and reacting to raw observations. Moving fast without making sense of things just produces thrashing.
- Waiting for certainty before deciding. The loop exists because certainty doesn't come.
- Treating it as a strict sequence. In practice orientation shapes what you observe and can lead straight to action.
- Not looking at what your own last action did.
Origin and references
Attributed to John Boyd (1970s).
- Boyd, J. R. (1995). The Essence of Winning and Losing. Unpublished briefing slides.
- Coram, R. (2002). Boyd: The Fighter Pilot Who Changed the Art of War. Little, Brown.