Scary stuff. Actually, more in the "gosh, that is a surprise!" department. But, nonetheless, enough to make oneself take a step back and ponder.
Yesterday, there was some enthusing over the Asus Eee in my (virtual) vincinity an dI flippantly said "can it run emacs?" and a short while realised that it's around 20 years since I first used emacs. That's an editor I've used for more than half of my life (and now, 15 years later, M-: for an eval prompt feels natural, but when it changed mid-90s, i tfelt very, very strange).
Curiously, I've actually coded in lisp longer than I've used emacs (and emacsoids), but only by a year or so and the first few years, what I had at hand was XLisp 1.2, not the most Common of lisps around (it's essentially a lisp-1, rather than a lisp-2 and it has its own bizarre object system that I never, ever, understood, even after having perused the interpreter's source).
It's slightly scary, though, having the thought "I've used emacs for more than half my life".