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@louis «These two notations may be used interchangeably as far as the Lisp system is concerned. However, as a matter of style, this book uses the notation () when it is desirable to emphasize the use of an empty list, and uses the notation nil when it is desirable to emphasize the use of the Boolean “false”.»

— Common Lisp, the Language. Guy L. Steele Jr.

Tell your friends the convention says: “Fuck you, idiots!”

@veer66