O: Observe: collect the data. Figure out exactly where you are, what’s happening.
O: Orient: analyze/synthesize the data to form an accurate picture.
D: Decide: select an action from possible options
A: Action: execute the action, and return to step (1)
The genius of Boyd’s idea is that it shows that speed and agility are not about physical reflexes — they’re really about information processing. They’re about building more/better feedback loops. The more high-quality OODA loops you make, the faster you get.