AKICIF: looking for a specific xkcd cartoon

So xkcd ran a cartoon a little while back (w/in the last two months or so IIRC) with the entire EM spectrum (mostly in black) on one axis (something else on the other axis, I forget which, but it was an x-y graph) and a little rainbow inset with the caption "everything you see and hear is here." and something about "compared to the rest of the universe, we are deaf and blind." And I'm having no luck on actually finding the thing...