Or is it a meme by now? Google finds four results of this phrase:
http://williamedwardscoder.tumblr.com/post/13292744100/the-s...
https://www.reddit.com/r/programming/comments/sgght/comparin...?
https://www.reddit.com/comments/108q4b/markov_chain_poem_tra...
http://encode.ru/threads/2225-A-jackhammer-it-doesn%E2%80%99...
But it turns out all of those are you. Does your computer beep every time somebody posts about markov chains, so that you can go post this comment? Do you have it saved on your machine, ready for copy paste?
I feel like I'm in an XKCD strip right now.