Boyd was a fighter pilot in the air force, and he invented OODA to describe a dynamic that he’d learned through his years in combat: to succeed, you need to constantly observe, orient, decide, and act. OODA. The way to outmaneuver your opponent is to get inside their OODA loop. Figure out what they are observing, how they are orienting and deciding, and how they act as a result. That way, you can anticipate them.