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<p>Likewise, you don’t need to be in the military to know the meaning of OPORD, WARNO, FRAGO, FO, FSO, FDC, SOP, ROE, etc. Hell, that information is publically available information that the DoD and Department of the Army online through pamphlets and field manuals.</p>
<p>However, if you weren’t in the military and never had exposure to these terms it would be pretty foreign to you.</p>
<p>In the same way, if someone lived in Michigan he is MORE LIKELY to know the difference between UMichigan and Michigan State than someone who lives on the the other side of the country. </p>
<p>Therefore, if it’s blatantly obvious that the knowledge would be more “common” to a certain group than another, then the question is if that is really “COMMON knowledge”?</p>