And In The Darkness Bind Them

secretgeek is a bit more tongue in cheek about this than the Church would recommend...

Lisp is so simple that you can implement it in any language in just a few pages of code. This might never happen though, because once you've learnt lisp you'd never want to write anything in any language other than lisp, so you wouldn't bother implementing lisp in any language other than lisp.

Lisp can be fully implemented in lisp in just a handful of lines. I just implemented lisp in lisp, fully, while i was hopping onto a bus and paying for my bus ticket all at the same time...

Only lispers have a true definition of fun.