Exactly. Lisp rule could be shortened to minutes to explain. From SICP videos for HP, by Hal Abelson:
> Lisp is easy to learn... just as you can teach someone all the rules of chess in a few minutes. But of course, it takes much longer to master those rule... how do you exploit those rule to become a master player.
> Lisp is easy to learn... just as you can teach someone all the rules of chess in a few minutes. But of course, it takes much longer to master those rule... how do you exploit those rule to become a master player.