To follow-up on xkcd’s Madagascator cartoon (previously), I missed the fact that clicking on the cartoon at the xkcd website actually did something, but Keir caught it: it links to Drew Roos’s Mercator: Extreme, an online tool that allows you to have some fun with the Mercator projection’s excessive polar distortion by making any point on the planet the North Pole and which clearly served as Randall’s inspiration.