Sheepdog Tip of the Day, During Combat tip 199
In the Boyd OODA loop, to observe is to gather data by using your senses to get information about what is happening. In a nutshell, this means size-up. The key is that you need to develop a filter, so that you are not trying to gather too much information. You need to focus on the critical information for your assignment and let the rest of the chaos become a fuzzy part of the backdrop. If you allow yourself to be flooded with nonessential stimulus, your processing power will quickly become overwhelmed.
Christopher Brennan, The Combat Position: Achieving Firefighter Readiness
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