Considering I learnt this week bees have been shown to understand numerical symbols to the point of accociating them with quantity, using bees might be getting a little too close to Turing Complete for my liking. I mean, we all know how badly that turned out with PDFs, right?
I knew about postcript (who doesn't lock up office printers by rendering mandlebrot sents?) but was absolutely convinced PDFs were as well. They're not and it seems they quite deliberately weren't as well. [1] - thanks for setting me straight :)