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envelope-from=drew.adams@oracle.com; helo=mx0b-00069f02.pphosted.com X-Spam_score_int: -13 X-Spam_score: -1.4 X-Spam_bar: - X-Spam_report: (-1.4 / 5.0 requ) BAYES_05=-0.5, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.io gmane.emacs.help:131052 Archived-At: > >> Then these terms should be dropped, perhaps. > > > > Relative terms are (relatively) useful. Would you drop > > "left" or "right" or "up" or "down"? >=20 > Yes, but everyone knows that, however when someone introduces > fancy terminology (shallow and deep copy) one expects them to > have precise definitions. >=20 > At least that's what I expected in this case, maybe that's > relative as well... They're common, old, general, and (yes) relative terms. And hardly fancy. But if unacquainted (no shame in that): https://letmegooglethat.com/?q=3Ddeep+copy+lisp https://letmegooglethat.com/?q=3Dshallow+copy+lisp This heavily upvoted Q&A is the first search hit: https://stackoverflow.com/questions/184710/what-is-the-difference-between-a= -deep-copy-and-a-shallow-copy