This video tells you, why particle masses are central for our daily life, and why especially their values are crucial. This is the real reason why all of us should be curious where mass comes from. Making of:: The organizers of the German exhibition die Welt Maschine (2008), the German Executive LHC Outreach Group (GELOG), wanted to explain to exhibition visitors why it is necessary to understand the origin of mass. The animation studio Tricklabor was brought on board to help develop a concept for an exhibition display about the subject. The result is this short video depicting 4 different scenarios of how the universe would have turned out if the elementary particles had slightly different masses. Also available in German with the title "Was wäre, wenn...?