http://www-formal.stanford.edu/jmc/recursive.html http://www-formal.stanford.edu/jmc/recursive.html https://paulgraham.com/rootsoflisp.html https://paulgraham.

http://www-formal.stanford.edu/jmc/recursive.html http://www-formal.stanford.edu/jmc/recursive.html https://paulgraham.com/rootsoflisp.html https://paulgraham.com/rootsoflisp.html This is the arch-rival of Unix+C, and also one of his best CS friends (GNU Emacs it's still there, and it was widely used on Unixen, among reusing GNU (Unix clone) tools).