It’s not really clear if the mayor of the hot-spring resort city of Beppu, on the Japanese island of Kyushu, was serious when he promised to build a “spa-musement park”, but its promotional video (below) received more than two million views in 10 days on YouTube. It’s not even clear whether such a spa/amusement park hybrid would be possible, or if the English-subtitled video (which was filmed in a real amusement park, with no CGI) is in fact serious, or just tongue in…