The OODA loop
The OODA loop is a decision cycle — Observe, Orient, Decide, Act — repeated continuously. In a contest, whoever runs the loop faster and orients more accurately gets “inside” the rival’s cycle and disrupts their ability to respond.
How does the OODA loop work?
The decisive step is Orient — turning raw observation into meaning using mental models and experience. Speed matters, but speed with bad orientation just produces fast errors; the edge comes from re-orienting quickly as reality changes.
Run the loop faster than your rival and you get inside their ability to respond.
How do you use the OODA loop?
- Competitive strategy: act and re-observe faster than a rival so they’re always responding to a stale picture.
- Operating under uncertainty: favour tight observe-act cycles over one big upfront plan.
- Decision audits: ask whether you’re actually re-Orienting or just looping on the same stale interpretation.
What does the OODA loop look like in practice?
Fighter pilot John Boyd, who devised it, argued a pilot who cycles Observe→Orient→Decide→Act faster forces the opponent to keep reacting to outdated information — “getting inside their OODA loop” — and wins despite a slower aircraft.
Where does the OODA loop fail?
Worshipping speed while skipping Orient leads to confident, fast, wrong moves. And against a non-adversarial, slow-moving problem, frantic looping can be worse than patient analysis.
- In organisations the cycle runs at the speed of the slowest approval layer, so individual quickness rarely transfers to the institution.
- An informed adversary can feed you selected observations, turning your own loop into a channel for their deception.
- The model says nothing about which signals deserve observation — a fast loop trained on the wrong inputs compounds error faster.
The counter-model: Margin of safety — OODA compresses decision time; margin of safety adds buffer for the fast decisions that turn out wrong.
How do you apply the OODA loop, step by step?
- In a fast-moving contest, write down what you can currently observe and what you cannot.
- Spend the most effort on Orient: what do these observations mean given context and bias?
- Choose the smallest action that tests your read and creates new information.
- Act, observe the response, and restart the loop immediately.
- Check whether your cycle beats the rival's on orientation, not just speed; if not, fix Orient first.
Frequently asked
- What is the OODA loop?
- A four-step decision cycle — Observe, Orient, Decide, Act — repeated continuously to make and update decisions faster than a changing situation or an opponent.
- Who invented the OODA loop?
- US Air Force colonel and military strategist John Boyd, originally to explain success in aerial combat; it’s now used widely in business and strategy.
- Which OODA step matters most?
- Orient — interpreting observations through mental models and experience. Good orientation is what makes fast decisions correct rather than merely quick.
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See this alongside the other thinking tools of building a startup and learning.
Go deeper
The book behind this idea: Boyd: The Fighter Pilot Who Changed the Art of War by Robert Coram. Hear the whole thing free — start an Audible trial and your first audiobook is on the house.
Read the full summary of Boyd: The Fighter Pilot Who Changed the Art of War →
More canonical picks:
- Thinking, Fast and Slow — Daniel Kahneman
- The Art of Thinking Clearly — Rolf Dobelli
- The Great Mental Models, Volume 1 — Shane Parrish
- Poor Charlie’s Almanack — Charlie Munger
- Super Thinking — Gabriel Weinberg & Lauren McCann
- Seeking Wisdom — Peter Bevelin
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Cite this page
ReadGlobe. (2026). The OODA loop. https://readglobe.com/model/ooda-loop/
"The OODA loop." ReadGlobe, 30 June 2026, readglobe.com/model/ooda-loop/.
Primary source: Wikipedia
Editorial synthesis © ReadGlobe 2026, drawing on the mental-models tradition (Charlie Munger, Farnam Street) and the primary sources for each model. · Last reviewed 2026-06-30.