It is all about motivation! We can all run a marathon, climb the biggest mountain or sail around the world, as long as we have the right motivation. The video below shows how people can be motivated to change something very small in their normal behaviour, without it having to cost them anything.
The question is, how can we use this in other aspects of our lifes where we feel the need to change peoples’ behavior? Should we build massive pianos everywhere? Or can we find something else that is as simple and as efficient as this example?