I figured out a shorter answer: It's a foreign language that I want to learn. All these smarty-pants through the decades knew it and I wanna feel as if I'm a part of an obscure club. :P I always hated the language of mathematics - I never liked the symbols, but I do like doing formulas in Excel, and writing algorithms (little machines) that make stuff happen. This is like building a language machine. One of the things people say about it is "Lisp is a programmable programming language." That intrigues me.?