the.com/reference

The flex of knowing where you stole the idea from.

means A pointer to the source of information, used to back up a claim or let someone check your work.

from From Latin referre, 'to carry back' — re- (back) plus ferre (to carry/bear). The word entered English via French in the sense of 'relating to' or 'referring to,' and by the 1600s had settled into its modern job: the act of pointing a reader back to where the real information lives.

job context
Someone paid to lie nicely about you.
coding meaning
A pointer to data, not the data itself.
librarians invented
The reference desk predates Google by centuries.
circular refs
Programs and arguments both crash from these.
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