In this interesting article from Smithsonian.com called What Defines a Meme? we read that information can replicate, mutate, and evolve. I can't help but agree.
I am green with envy. I'd love to be awarded a "genius" grant just for the bragging rights! *sigh*
And finally, it seems that ancient graffiti CAN teach us something about the past. (Stop your tittering. This is serious. Well...sort of.)