Very cool. But he should have done the tail recursive accumulator version at least... =)

When he dies and he's in the morgue, the mortician can say, "There's a cdadr on that cadaver!"

tattoos strike me as something timeless... but i've yet to see a piece of code be so fundamentally pure as to be timeless.

How's about:

Y = Ly.(Lx.(y)(x)x)Lx.(y)(x)x

That's my tattoo, and I'm a girl. Also, I think scheme code is pretty timeless, and the fibs definitely so.

(K x y) -> x
(S x y z) -> (x z (y z))

I'm less distracted by the typography than by the code being wrong.