Today, I am not seeking... but rather sharing a profound pearl of wisdom that I found while diving beneath my comfort zone of Perl. This applies to "system" as well as "software development":
These three tactics are presented in increasing order of “cleverness.” Such
cleverness should be used only when necessary, since it requires a corresponding
application of cleverness on the part of the maintenance programmer eight weeks
later, and such cleverness may not be available.
Higher-Order Perl, bottom of page 211
It is always better to have seen your target for yourself, rather than depend upon someone else's description.