Greenspun's Tenth Rule
Also known as "Greenspun's tenth rule of programming" computer programming aphorism by Philip Greenspun.
Any sufficiently complicated C or Fortran program contains an ad-hoc, informally-specified bug-ridden slow implementation of half of Common Lisp.
Source: (philip.greenspun.com) Philip Greenspun's Research
(en.wikipedia.org) Greenspun's tenth rule - Wikipedia website
ROAM_REFS: https://en.wikipedia.org/wiki/Greenspun's_tenth_rule
Greenspun's tenth rule of programming is an aphorism in computer programming and especially programming language circles that states:
Any sufficiently complicated [[https://en.wikipedia.org/wiki/C_(programming_language)][C]] or [[https://en.wikipedia.org/wiki/Fortran][Fortran]] program contains an [[https://en.wikipedia.org/wiki/Ad_hoc][ad hoc]], informally-specified, [[https://en.wikipedia.org/wiki/Software_bug][bug]]-ridden, slow implementation of half of [[https://en.wikipedia.org/wiki/Common_Lisp][Common Lisp]].