2016-05-17
		17:49 UTC Revision 1 . . . . Marcin Borkowski – It is often claimed that one of the advantages of closures (as in “lexical scoping”) is information hiding (a.k.a. encapsulation). This is true, but as this post shows, you can’t really hide anything in Emacs Lisp;-).

History of 2016-05-17 Emacs Lisp closures demystified