A mathematical law, regarding dance records.
"The product of R and C is inversed proportionally to A."
R is the rarability
of the record,
C is the credibility
in playing the record,
and A is the availability of the record.
This means that finding a cool
record to play that your cool DJ
pals will respect you for playing, is utterly impossible
See also Greiff's Law of Credibility
and Murphy's Laws of Dancefloor Content