This article, like every other Lisp article, tells pre-teen me nothing that he could use. Nobody ever demonstrated how much easier task X is in Lisp over asm/C/Pascal/etc.
By contrast, current me could have told pre-teen me "Hey, that spell checker that took you 7 months to write in assembly? Yeah, it's damn near trivial in Lisp on a microcomputer with bank switched memory that nobody every knew how to utilize (it makes garbage collection completely deterministic even on a woefully underpowered CPU). Watch."
I want to weep over the time I wasted doing programming with the equivalent of tweezers, rice grains and glue because every Lisp article and textbook repeated the same worn out lists, recursion and AI crap without ever demonstrating how to do anything useful.