The Fun Theory Posted on October 9, 2009September 2, 2018 by Sandra “We believe that the easiest way to change people’s behaviour for the better is by making it fun to do. We call it The fun theory.” Check out this video – they transform a set of stairs next to an escalator into piano keys! Share this: Share on X (Opens in new window) X Share on Facebook (Opens in new window) Facebook Share on Pinterest (Opens in new window) Pinterest Share on LinkedIn (Opens in new window) LinkedIn Share on Reddit (Opens in new window) Reddit Share on Tumblr (Opens in new window) Tumblr Share on Pocket (Opens in new window) Pocket