29 upvotes, 1 direct replies (showing 1)
2: http://www.explainxkcd.com/wiki/index.php/1401
This is not the algorithm. (Sincerely, xkcd_bot.)
Comment by ViralMage at 30/07/2014 at 04:35 UTC
27 upvotes, 2 direct replies
Headcanon: the basis of the joke. Headcannon: the joke. Headcannnon: the hover text. Haha :)